Is the Buddhist's void (Nibbana) the same phenomenon as the void experienced by many OBEers? When I was younger I used to think that Nibbana was just a sort of Buddhist heaven, but it is apparently nothing more than the absence of sensation. According to the mind maps put forth by early Buddhists, one can only experience three things: physical sensations, mental sensations, and Nibbana, which is neither physical nor mental sensations. Considering the importance of reducing sensory input in order to establish the out of body state, it would seem logical to conclude that Nibbana and Focus 21 are more or less the same thing. However, this comparison becomes complicated by the fact that Nibbana also includes the absence of a separate perceiver or "watcher." It can only be known *after* the experience, a bit like waking up from anesthesia perhaps. On the other hand, when I access Focus 21, I definitely feel that I am an individuated unit of consciousness that is perceiving the experience. Basically, Focus 21 seems to be an experience of floating in a Void with spatial depth, whereas Nibbana seems to be a non-experience, almost like a time where one ceases existing. Yet the importance of sensory reduction stressed by both schools of thought is hard to ignore, and I can't help but wonder if Buddhists and modern OBEer's are really talking about the same thing when it comes to the Void.