Do Drugs Have Religious Import?, by Huston Smith

The Journal of Philosophy, Vol 61 (No. 18) Sep 17, 1964
(Online Copy)

Psychedelics and the Religious Experience, by Alan Watts

California Law Review, Vol 56 (No. 1) Jan 1968; 74-85No. 8, 1997; 15-22
(Online Copy)

The Reunification of the Sacred and the Natural, by Ralph Metzner

Eleusis, No. 8, 1997; 3-13
(Online Copy)

The Spiritual Use of Psychoactive Drugs, by Nicholas Saunders

Lecture, and Eleusis, No. 8, 1997; 15-22
(Online Copy)

MYSTICAL

Drugs and Mysticism, by Walter Pahnke

The International Journal of Parapsychology, Vol. 8 (No. 2) Spring 1966; 295-313
(Online Copy)

The Psychedelic Mystical Experience in the Human Encounter with Death, by Walter N. Pahnke

The Psychedelic Review, No. 11, 1971
(Online Copy) (Hardcopy)

SHAMANISM

Shamanic Origins of Religion and Medicine, by Weston La Barre, PhD

Journal of Psychedelic Drugs, Vol 11 (No. 1-2) Jan-Jun 1979, 7-11
(No Text Available)