Summarizes Grof's experiences and observations from more than forty years of research into non-ordinary states of consciousness. This accessible and comprehensi

Feelings of oneness with others, nature, and the universe. Encounters with extraterrestrials, deities, and demons. Out-of-body experiences and past-life memorie

Here Grof presents a useful model of the psyche—a model extended by his thirty years of studying non-ordinary states of consciousness. It is useful for underst

Beyond the Brain seriously challenges the existing neurophysiological models of the brain. After three decades of extensive research on those non-ordinary state

The definitive overview of this transformative breathwork.