https://www.youtube.com/watch?v=TE9ybQpVYmY
One of the rare full video lectures by the maestro of mysteries, Manly P. Hall. Recorded at the Philosophical Research Society in Los Angeles on May 21, 1989.
Read more about Manly P. Hall:
https://www.gnosticserpent.com/knowledge-base/manly-p-hall/