Dennis McKenna is an American ethnopharmacologist, research pharmacognosist, thinker, lecturer, author and the founder of the McKenna Academy of Natural Philosophy. For more than forty years, his professional research, interests and activities have focused on hallucinogenic plants as well as the quest for synergy between Western science and ancient indigenous knowledge, between science and mysticism. McKenna is convinced that the future of humanity is only possible in symbiosis with nature.