Brahmanical and non-Brahmanical ascetic traditions of the first millennium BCE produced in shut interaction, using proto-Samkhya enumerations (lists) examining experience inside the context of meditative techniques providing liberating insight into the nature of practical experience. You will also find a lot of particular accounts of satsangs with several teachers. The https://podcasts.apple.com/us/podcast/a-course-in-miracles-acim-podcast/id1456963067