Any philosopher who takes Kṛṣṇa also subjected to these, I mean to say, laws of māyā, they are called Māyāvadi. Māyāvadi, or śūnyavādi, practically the same. There are two kinds of Māyāvadis. They are called Māyāvadi of Sāranātha and Māyāvadi of Vārāṇasī. Some of you who have gone to India might have seen Vārāṇasī, very ancient city, pilgrimage, many thousands and thousands years ago. Nobody knows. Even we hear about the city of Vārāṇasī at the time of Hariścandra, long, long ago, many millions of years ago. So, Mathurā also. These are very, very old cities, Vārāṇasī. So the Vārāṇasī is mostly inhabited by these Śaṅkarites, and just a few miles off from Vārāṇasī there is one place which is called Sāranātha. In this place the bodha philosophers flourished. They came from Gayā, Gayā Province. Gayā Province is now known as Gayā . . . the city Gayā is still there, but this province is called now Bihar, and Gayā is one of the ancient cities also.
There is a Viṣṇu temple in Gayā. So people go to worship Lord Viṣṇu. Caitanya Mahāprabhu also, before taking sannyāsa, He went to Gayā to worship Lord Viṣṇu. Worship Lord Viṣṇu here in Gayā means to offer śraddhā, oblations to the forefathers. According to Vedic scripture, if some of my relatives or father and forefather did not get the body—are in the, what is called, ghost body . . . one has become a ghost. Ghost means one who does not get this gross body lives in subtle body.
There are two kinds of bodies: subtle body and gross body. Gross body is made of this earth, water, fire, air, sky; and subtle body is made of mind, intelligence and ego. So one who is too much attached to this material world or too much sinful, sometimes they are punished by not getting this gross body. They live in the subtle body, and that is called ghost. Ghost will be present before you, but you cannot see him. Generally these ghosts are mischievous, because they do not get gross body. They want to enjoy life, but without gross body they cannot enjoy. Therefore sometimes a ghost takes shelter of another gross body, and that person who is such ghostly haunted, becomes ghostly haunted and speak like the ghost.