We have to recognize that spirituality is a legitimate dimension in the psyche. It's a legitimate dimension in the universal scheme of things. It doesn't mean that you are superstitious, that you are in to magical, primitive thinking, if you take spirituality seriously.

Whether or not we believe in survival of consciousness after death, reincarnation, and karma, it has very serious implications for our behavior.

The study of consciousness that can extend beyond the body is extremely important for the issue of survival, since it is this part of human personality that would be likely to survive death.

Research challenges the materialistic understanding of death, according to which biological death represents the final end of existence and of all conscious activity.

The function of the brain is to reduce all the available information and lock us into a limited experience of the world. LSD frees us from this restriction and opens us to a much larger experience.

I have taken part in ceremonies with North American and Mexican shamans, as well as Brazilian ceremonies.

Dying people in pre-industrial cultures typically died in the context of an extended family, clan, or tribe.