Does the Maha Muni Agastya believes in caste system? Does He support it or appose it? We humans have such limiting beliefs but to such a Sage, the caste bears no importance, but the belief system, in which a human can touch the highest of realization. The Siddhas believe in the methods of higher realization and it is no wonder they all vouch for Sanatana Dharma, though not under any banner or belief system. The Siddhas are mysterious and unique indeed!