In Explorations in Consciousness, Frederick Aardema, a clinical researcher, provides a profound, in-depth account of the out-of-body experience, during which th

In Multidimensional Evolution, author Kim McCaul recounts his journey to Java seeking a technique to help calm the demons that had been troubling him for the pr

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