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Cleansing the Doors of Perception
The Religious Significance of Entheogenic
Plants and Chemicals

Huston Smith, internationally recognized philosopher, scholar of religion, and author of The World's Religions, now offers Cleansing the Doors of Perception, a course-correcting assessment of the connections among entheogens, religious experience, and the divinely inspired life.

A de luxe limited edition is available from the Council on Spiritual Practices, and a trade cloth edition (Tarcher/Putnam) is available from booksellers everywhere.

Who is Huston Smith?
Read a Q&A chat with Huston Smith
Hear a radio interview with Huston Smith
Read the American Academy of Religion review
Read excerpts from Cleansing the Doors of Perception

The de luxe edition, limited to five hundred numbered and signed copies, is made by Stamperia Valdonega in Verona, the fine Italian press that produced the rare limited editions of Gordon Wasson's Ethnomycological Studies series, including Soma, The Wondrous Mushroom, and Persephone's Quest: Entheogens and the Origins of Religion.

Designed by Martino Mardersteig, this special edition of Cleansing the Doors of Perception is printed on Magnani mould-made paper, Smythe-sewn, bound in quarter leather with cloth sides and cloth covered slipcase by Ruggero Rigoldi, individually numbered on the letterpress, and signed by the author.

TO OBTAIN THE DE LUXE EDITION: The limited edition of Cleansing the Doors of Perception is now available in thanks for donations to CSP of $300 or more. Proceeds benefit the Primary Religious Experience Project. Your contribution, less $150, is tax deductible in the U.S. as a charitable gift.

To request a copy, send your check, money order, or Visa/MasterCard information (stating the amount you wish to give) to CSP, PO Box 10086, Berkeley, CA 94709. Please be sure to include your shipping address and a telephone number where we can reach you in case of any problem. Thank you for your support of this work.

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If the doors of perception were cleansed, every thing would appear to man as it is, infinite.
–William Blake

On this treacherous subject, where it is easy to go wrong, Smith has written a book that is as responsible as it is informed. His views are completely in accord with my own.
–Albert Hofmann, Ph.D.
author of LSD: My Problem Child