Complex sentence: Refers to the gross, subtle, and mental worlds ("akash, pran, mana ") of Sufism and Vedanta described in Meher Baba's book"God Speaks".
Split into simpler sentences: Refers to the gross, subtle, and mental worlds ("akash, pran, mana ") of Sufism and Vedanta described in Meher Baba's book God Speaks. Concepts discussed in Meher Baba's book"God Speaks".