This book is based on experiences, observations, and insights from thirtyfive
years of systematic exploration of the value of non-ordinary states of
consciousness. During this time, I have received invaluable help and support
from many people who have played important roles in my personal
and professional life. 1 would like to use this opportunity to briefly acknowledge
at least a few of them.
Joseph Campbell, who was for many years my dear friend as well as an
important teacher, taught me much about the relevance of mythology for
psychology, religion, and human life in general. His brilliant intellect, encyclopedic
memory, and amazing capacity for creative synthesis brought unusual
clarity into many areas that had been in the past misunderstood and
confused by traditional science, religion, and philosophy.