110 Years of Spiritual Development Part 3 of a 3-part Series Read Part 1 HERE ...........Read Part 2 HERE Going by the Gut. Massive Growth. Unlimited Potential. Historic Overview of Growth of Occultism and Spirituality In my previous posts in this series I have associated historical events with the advancement of spirituality in the West and the growth of Llewellyn. I contend that to really understand what was going on requires this three-fold approach. Therefore, to fully comprehend the development of Llewellyn and its impact on worldwide (and especially U.S.) spiritual growth between 1961 and the present begins with understanding the changes over time in the numbers of people