Long Out-of-print Yet Often Cited In Psychedelic Literature, The Book Of Sacraments, Originally Published In 1970, Was A Holy Book From The (now Defunct) Church Of The Tree Of Life, Established And Incorporated By John Mann. A Fundamental Belief Was That We Have The Right To Alter Our Consciousness With Plants Extracts For Medical, Spiritual, And Even Recreational (re-creating) Purposes.the Book Of Sacraments Consists Of Introduction And Discussion Of Several Sacred Plants, Most Still Legal And Easy To Obtain, That Have Been Used Traditionally In Religious (spiritual, Consciousness Expanding) Rituals By Native People.while The Church Of The Tree Of Life Disbanded Decades Ago, The Longing For A Spiritual Connection Continues. One Way To Achieve Such A Connection With With The Ritual Use Of Magical Plants.