For Ram Dass psychedelic work turned out to be a prelude to the mystical country of the spirit and the source of consciousness itself. Mind expansion via chemical substances became a catalyst for the spiritual seeking. This naturally led him eastward to the traditional headwater of mystical rivers, India. Once there, a series of seeming coincidences led him to Neem Karoli Baba and the transformation from Richard Alpert to Ram Dass.

http://www.youtube.com/watch?v=8WPcpb2GHR4

http://dharmalog.com/2013/09/26/ame-diga-historia-ram-dass-richard-alpert-mestre-neem-karoli-baba-video/