Written by Swami B.G. Narasingha in the mid 90s, “Evolution of Theism” delineates the progressive evolution of theistic thought, starting from Buddha and Adi-Shankara, to the great Vaishnava acharyas Ramanuja and Madhva, culminating in the appearance of Shri Chaitanya Mahaprabhu and his philosophy of achintya bheda-bheda tattva.