"Holger Kalweit's tour de force offers a fascinating vision of personal, social and environmental healing. Rich in examples and even richer in understanding, the book makes a vital point: it is time for the wisdom of these ancient, earth-cherishing traditions to be integrated into our Western worldview."
-- Joan Halifax, author of Shamanic Voices

"This masterful book draws a line in the scientific sand: step over it and be changed. The shocking revelation, affirmed by shamanic experience worldwide, is that the human mind cannot be confined to space, such as individual bodies and brains, or to time, such as the present moment. The spiritual implications of these facts are profound. Kalweit knows this, as have shamans for millennia. It's time the rest of us caught on. Thanks to this remarkable book, we just might."
-- Larry Dossey, M.D., author of Recovering the Soul

"This is an important book with a serious message: the worlds of modern science and ancient shamanism overlap; indeed they may be the same thing. Yet there is a peril - the destruction of one of these worlds will also destroy our own. We need both to remain human."
-- Fred Alan Wolf, Ph.D., author of The Eagle's Quest.