Harry Potter Books – Free Download

I’m a hugeeeee Harry Potter fan and I have read all the books at least 5 times! For my other fellow Harry Potter fans, I present the PDF versions of the books for free download!

Harry Potter and the Sorcerers Stone

Harry Potter and the Chamber of Secrets

Harry Potter and the Prisoner of Azkaban

Harry Potter and the Goblet of Fire

Harry Potter and the Order of the Phoenix

Harry Potter and the Half-Blood Prince

Harry Potter and the Deathly Hallows

Have a magical reading experience! 😀



Astral Projection – A true experience or a trick of brain?

A few people claim that they have had bizarre experiences being outside their very own body and roam in a strange astral plane. This post analyses the scientific explanation behind this phenomena.

Astral projection is a paranormal interpretation of out-of-body experiences that assumes the existence of one or more non-physical planes of existence and an associated body beyond the physical. Commonly such planes are called astral, etheric, or spiritual. Astral projection is often experienced as the spirit or astral body leaving the physical body to travel in the spirit world or astral plane.

An out-of-body experience (OBE or sometimes OOBE) is an experience that typically involves a feeling of floating outside one’s body and, in some cases, the feeling of perceiving one’s physical body as if from a place outside one’s body (autoscopy). OBEs can be induced by brain traumas, sensory deprivation, near-death experiences, dissociative and psychedelic drugs, dehydration, sleep, and electrical stimulation of the brain, among others. It can also be deliberately induced by some. One in ten people have an OBE once, or more commonly, several times in their life.


  • The “Mind Awake, Body Asleep” state is widely suggested as a cause of OBEs.
  • Magnetic stimulation of the brain, as with the God helmet developed by Michael Persinger.
  • Electrical stimulation of the brain, particularly the temporoparietal junction.
  • A study conducted by Jason Braithwaite and colleagues (2011) linked the OBE to “neural instabilities in the brain’s temporal lobes and to errors in the body’s sense of itself”.
  • Terence Hines (2003) has written that spontaneous out-of-body experiences can be generated by artificial stimulation of the brain and this strongly suggests that the OBE experience is caused from “temporary, minor brain malfunctions, not by the person’s spirit (or whatever) actually leaving the body.
  • The temporoparietal junction (TPJ) is an area of the brain where the temporal and parietal lobes meet. The TPJ integrates information from both the external environment as well as from within the body. The TPJ is responsible for collecting all of this information and then processing it. This area is also known to play a crucial role in self-other distinctions processes and theory of mind (ToM). Theory of Mind is the ability to attribute mental states — beliefs, intents, desires, pretending, knowledge, etc. — to oneself and others and to understand that others have beliefs, desires, intentions, and perspectives that are different from one’s own. Furthermore, damage to the TPJ has been implicated in having adverse effects on an individual’s ability to make moral decisions and has been known to produce out-of-body experiences (OBEs). Electromagnetic stimulation of the TPJ can also cause these effects.

God Helmet:

The God Helmet was not specifically designed to elicit visions of God, but to test several of Persinger’s hypotheses about brain function. The first of these is the Vectorial Hemisphericity Hypothesis, which proposes that the human sense of self has two components, one on each side of the brain, that ordinarily work together but in which the left hemisphere is usually dominant. Persinger argues that the two hemispheres make different contributions to a single sense of self, but under certain conditions can appear as two separate ‘selves’. Persinger and Koren designed the God Helmet in an attempt to create conditions in which contributions to the sense of self from both cerebral hemispheres is disrupted.

The second experimental hypothesis was that when communication between the left and right senses of self is disturbed, as they report it is while wearing the God Helmet, the usually-subordinate ‘self’ in the right hemisphere intrudes into the awareness of the left-hemispheric dominant self, causing what Persinger refers to as “interhemispheric intrusions”.

The third hypothesis was that “visitor experiences” could be explained by such “interhemispheric intrusions” caused by a disruption in “vectorial hemisphericity”. Persinger theorises that many paranormal experiences, feelings of having lived past lives, felt presences of non-physical beings, ghosts, muses, and other “spiritual beings”, are examples of interhemispheric intrusions.

The God Helmet experiments were also intended, though not specifically designed, to validate the idea that religious and mystic experiences are artifacts of temporal lobe function.


Autoscopy is the experience in which an individual perceives the surrounding environment from a different perspective, from a position outside of his or her own body. It is the impression of seeing one’s own body. According to neurological research, autoscopic experiences are hallucinations. Several analysis has suggested that autoscopic experiences are due to functional disintegration of lower-level multisensory processing and abnormal higher-level self-processing at the temporoparietal junction.

Heautoscopy is a term used in psychiatry and neurology for the reduplicative hallucination of “seeing one’s own body at a distance”. It can occur as a symptom in schizophrenia and epilepsy. Heautoscopy is considered a possible explanation for doppelgänger phenomena.

The term polyopic heutoscopy refers to cases where more than one double is perceived. In 2006, Peter Brugger and his colleagues described the case of a man who experienced five doubles resulting from a tumor in the insular region of his left temporal lobe.

Another related autoscopy disorder is known as negative autoscopy (or negative heautoscopy) a psychological phenomenon in which the sufferer does not see his or her reflection when looking in a mirror. Although the sufferer’s image may be seen by others, he or she claims not to see it.

To summarize, as the OBEs can be simulated to occur, it explains that it is a trick of brain which can automatically happen during sleep without any need for simulation.

So, the next time if any one says they have been roaming all night with a super soul-suit, enlighten them by explaining how their very own brain tricked them!

Please share your thoughts on this along with your experiences, if any, in the comments section! 🙂

Happy hallucinating! 😀


Frozen in the middle of the night surrounded by ghosts! – Are they really ghosts or just…Sleep Paralysis?

With the exception of maybe your eyes and your breathing, you find yourself virtually frozen in bed. For some this situation is then made exponentially worse by hallucinations that manifest in their surroundings, threatening them while they cannot even muster a scream. Such experiences are caused by what’s known as sleep paralysis (or SP), a phenomenon that occurs every night in the typical sleeper to prevent him or her from acting out dreams during REM sleep. When this paralysis outlasts sleep, as it sometimes can, you get instances like those described above.

While sleep paralysis occurs in the typical sleeper virtually every night, the phrase itself has become synonymous with the experiences that can more precisely be referred to as awareness during sleep paralysis (ASP), or isolated sleep paralysis (iSP). Isolated Sleep Paralysis occurs alone without being part of another sleeping disorder.

The two major classifications of sleep paralysis are isolated sleep paralysis (ISP) and the significantly rarer recurrent isolated sleep paralysis (RISP). ISP episodes are infrequent, and may occur only once in an individual’s lifetime, while recurrent isolated sleep paralysis is a chronic condition, and can recur throughout a person’s lifetime. RISP episodes can last for up to an hour or longer, and have a much higher occurrence of perceived out of body experiences, while ISP episodes are generally short (usually no longer than one minute) and are typically associated with the intruder and incubus visitations. With RISP the individual can also suffer back-to-back episodes of sleep paralysis in the same night, which is unlikely in individuals who suffer from ISP.

Sleep paralysis episodes can also more rarely be a sign of the sleep disorder narcolepsy, and in these cases it is no longer referred to as isolated. Narcolepsy itself is another fascinating sleep disorder, involving patients suffering attacks of REM sleep unexpectedly at various times during the day. Despite being associated sometimes with narcolepsy though, awareness during sleep paralysis happens quite frequently in even the most normal of sleepers. In fact, it is said that over 50% of people will experience at least one episode of ASP during their lifetime.

What causes sleep paralysis?

To answer this question it’s necessary to know a bit about REM (Rapid Eye Movement) sleep, the stage of sleep where most of your dreams occur. Every night during REM sleep the body shuts down virtually all muscle activity to prevent you from acting out those dreams. Your brain is extraordinarily active as you dream, as you might be able to imagine if you think about the complex environments and actions it is conjuring. The only thing that prevents your body from moving to carry out the scene your brain is living is a mechanism that kicks in to paralyze it.

This mechanism is referred to as REM atonia, or REM sleep paralysis. Very rarely, this mechanism can malfunction in some people with a condition that’s quite the opposite of ASP known as REM sleep behavior disorder (or RBD). People with RBD often thrash around (or even walk and sometimes even drive!) in a manner that corresponds with what’s happening in their dream world. In other words, they act out their dreams, because the paralysis that should be there during the dream is not.

On the other end of the spectrum, occasionally this REM atonia can work too well, in a sense, and trickle over into the waking state for a short period. This is exactly what is believed to happen in instances of awareness during sleep paralysis.

Beyond some logical connections we can make between SP and the dream world, the precise nature of SP apparitions remains one of the biggest mysteries in dream research. The visions experienced during sleep paralysis are known as hypnagogic hallucinations (HH), or more precisely, if they occur upon awakening, hypnopompic hallucinations. After reading the causes of sleep paralysis section above, we can understand how closely tied SP is to REM sleep. We also understand that REM sleep is the time of the night where our most vivid dreams occur. In episodes of ASP, our wakefulness intrudes on REM sleep in a way that doesn’t fully extinguish the REM (hence the paralyzation). Our eyes are often open but we are still immersed in ways in the dream state. The fact that we can perceive our surroundings enables us to project parts of a dream outward onto the actual physical space around us.

Additionally, the part of the brain that is most responsible for the intense emotions we feel, the amygdala, is already heightened from our dream state during sleep, possibly contributing to the ease at which our fears and terrors are projected during these hypnagogic hallucinations. These connections between the dream world and our waking state during ASP make a ton of sense intuitively, but of course there’s a lot more room for further verifiable explanation as to the exactness of how sleep paralysis hallucinations occur.

Many people who experience sleep paralysis are struck with a deep sense of terror when they sense a menacing presence in the room while paralyzed—hereafter referred to as the intruder. A neurological interpretation of this phenomenon is that it results from a hyper-vigilant state created in the midbrain. More specifically, the emergency response is activated in the brain when individuals wake up paralyzed and feel vulnerable to attack. This helplessness can intensify the effects of the threat response well above the level typical of normal dreams, which could explain why such visions during sleep paralysis are so vivid. Normally the threat-activated vigilance system (TAVS) is a protective mechanism to differentiate between dangerous situations and to determine whether the fear response is appropriate. Some hypothesize that the threat vigilance system is evolutionarily biased to interpret ambiguous stimuli as dangerous, because “erring on the side of caution” increases survival chances. This hypothesis could account for why the threatening presence is perceived as being evil. The amygdala is heavily involved in the threat activation response mechanism, which is implicated in both intruder and incubus SP visions.

The specific pathway through which the TAVS acts is not well understood. One possibility is that the thalamus receives sensory information and sends it on the amygdala, which regulates emotional experience. Another is that the amygdaloid complex, anterior cingulate, and the structures in the pontine tegmentum interact to create the vision. It is also highly possible that SP hallucinations could result from a combination of these. The anterior cingulate has an extensive array of cortical connections to other cortical areas, which enables it to integrate the various sensations and emotions into the unified sensorium we experience. The amygdaloid complex helps us interpret emotional experience and act appropriately. This is conducive to directing the individual’s attention to the most pertinent stimuli in a potentially dangerous situation so that the individual can take self-protective measures. At low levels of activation, the TAVS may only give rise to the vague feeling of a presence. At increased levels, auditory, visual and touchable cues may become incorporated and interpreted as the approach of an intruder.

The sensation choking may be nothing other than an awareness of the rapid and shallow breathing pattern characteristic of REM sleep, coupled with an SP-related inability to control one’s breathing pattern, that is to take a deep breath.

Hope this post clarifies your doubts on ghost infestation in your house! 😛

Please share your valuable thoughts and experiences, if any, in the comments section! 🙂

Various websites including wikipedia and webmd.


Welcome to the paranormal part of my blog!

In this page, I’m going to share the science behind certain incidents which we categorize as paranormal activities. This is more like a collection of information gathered from various websites and blogs to maintain as a summarized central repository, and hence, all the rights and credits goes to the respective websites.

The reason for my research in this area, is my loss of two important people in my life – My Grandma & My Jimmy (Pet, who was never a pet, but a part of my family). I was quite burnt out after they passed away and hence started this research trying to understand the scientific perspective of paranormal and supernatural behaviours. I’m not a pro in research and I would welcome any subjective comments. I’m posting the information which I learnt, and continuing to learn, from various sites. I’d also highly appreciate you to post relevant links or information in the comments section, so that, together, we all can learn!

The topics I intend to cover are related to supernatural behaviors. Some posts might not be suitable for the faint-hearts, and if it is so, it will be mentioned in the title.

I, also, gladly welcome suggestions on topics which I can research and post further.

Thanks for reading my posts! 🙂