Xenolinguistics Psychedelics, Language, and the Evolution of Consciousness Slattery, Diana Heftet / 2015 / Engelsk
Seeding Consciousness Plant Medicine, Ancestral Wisdom, and Psychedelic Initiation Eastman, Tricia Heftet / 2025 / Engelsk
Psychedelic Mysteries of the Feminine Creativity, Ecstasy, and Healing Papaspyrou, Maria Heftet / 2019 / Engelsk