Terence Kemp McKenna (16 November 1946 – 3 April 2000) was an Irish-American philosopher, psychonaut, researcher, teacher, lecturer and writer on many subjects, such as human consciousness, language, psychedelic drugs, the evolution of civilizations, the origin and end of the universe, alchemy, and extraterrestrial beings.
After much time spent learning about folk shamanism in Tibet and searching for ayahuasca in the Colombian Amazon, McBekka and his brother Dennis published a book about their Amazon experiences entitled The Invisible Landscape: Mind, Hallucinogens, and the I Ching. In the early 1980s, McKenna began to speak publicly on the topic of psychedelic drugs, lecturing extensively and conducting weekend workshops. Though associated with the New Age and human potential movements, McKenna himself had little patience for New Age sensibilities. He repeatedly stressed the importance and primacy of felt experience, as opposed to dogma.
Terence McKenna advocated the exploration of altered states of mind via the ingestion of naturally occurring psychedelic substances. For example, and in particular, as facilitated by the ingestion of high doses of psychedelic mushrooms, and DMT, which he believed was the apotheosis of the psychedelic experience. Although he avoided giving his allegiance to any one interpretation (part of his rejection of monotheism), he was open to the idea of psychedelics as being “trans-dimensional travel”; literally, enabling an individual to encounter what could be ancestors, or spirits of earth. He remained opposed to most forms of organized religion or guru-based forms of spiritual awakening.
Either philosophically or religiously, he expressed admiration for Marshall McLuhan, Pierre Teilhard de Chardin, Gnostic Christianity, Alfred North Whitehead and Alchemy. McKenna always regarded the Greek philosopher Heraclitus as his favorite philosopher. He also expressed admiration for the works of James Joyce (calling Finnegans Wake “the quintessential work of art, or at least work of literature of the 20th century”) and Vladimir Nabokov. McKenna once said that he would have become a Nabokov lecturer if he had never encountered psychedelics. (WIKIPEDIA)