A biochemist, physicist, and herbalist by profession, Richard Alan Miller combines his knowledge of both science and ritual in the exploration and practice of herbal magic. His book describes the historical use, chemical structure, preparation for consumption, and magical rituals of nineteen narcotic, hallucinogenic, stimulant, and depressant herbs -- including morning glory seeds, wild lettuce, damiana, skullcap, and psilocybe mushrooms. The chemistry of each herb is examined to determine how it affects the conscious perception of reality, and corresponding rituals are recommended to heighten both physical and psychological awareness. Detailing the plants' uses in other cultures and religious traditions, while providing necessary precautions, the author explains how these natural substances can be used by individuals for the enhancement of sexuality, muscle relaxation and massage, initiation rites, astral projection, and spiritual growth.