Sleep paralysis creates a period of temporary immobility during sleeping or in the process of waking. It usually involves a lot of fear and hallucinations. There are frequent reports of people experiencing a dark or haunted figure or even a ghost in the event. Such experiences are real to the point that many think that they have faced the supernatural.
It is a condition that arises when the brain has only awakened, yet the body is in REM sleep paralysis. The occurrence of hallucinations can be explained by the fact that the dreaming brain remains active even though it is in a waking state. This generates sensual realities merged with the real.
Because of the perceived danger of not moving, the brain creates figures of threat. Some examples of hallucinations are the presence of intruders such as ghosts around the bed. This, coupled with overwhelming fear and feeling of pressure on their chest convinces individuals that a supernatural phenomenon has happened.
In the face of terror that is unknown, the brain employs familiar cultural figures such as ghosts. This determines the content of the particularities of what individuals observe in the episode.
As such, sleep paralysis establishes the circumstances of seeing ghosts. This vulnerability is made by paralysis. The hallucinations give sensory evidence. This is perceived as supernatural by fear and cultures. It is more of a biological condition, not evidence of ghosts.
Conclusion:
Most of the ghost experiences can be biologically explained by sleep paralysis. Paralysis gives rise to terror. The effect of the brain being in a dream state and awake at the same time leads to hallucination of intruders which feels real. Individuals perceive these feelings with respect to their cultural belief system and usually they perceive ghosts. It is not a connection with something super-natural, and it is a natural brain-body state, but to a person it seems very convincing as real.
