The talk based on this ppt can be heard here: https://www.thespiritualscientist.com/2018/04/science-spirituality-psychiatry-cant-replace-spirituality/ The speaker, Chaitanya Charan, is a monk, mentor and spiritual author. He has written 20 books and writes the world's only daily blog on the timeless spiritual class, Bhagavad-gita, at gitadaily.com