008 Alchemy and the Cosmic Spirit lecture series is an incredibly unique and amazing lecture series! If you interested in what the Cosmic Spirit is and how it works into your life as a student of the Spirit you would should definitely take this lecture course! There is also a marvelous set of two lectures on how to develop the astral organs. Also, included in this lecture series is an amazing esoteric lecture on the nature of the ego. Probably one of my favorite lectures EVER is the last lecture 00812 - The Significance of our Spiritual Birthday. You will be so excited to listen to this lecture! Nevertheless, I would highly recommend this lecture series!! It was truly amazing!!