People may question that "Lord Buddha is accepted as an incarnation of Lord Kṛṣṇa." Keśava dhṛta-buddha-śarīra jaya jagadīśa hare. "Then why he preached atheistic philosophy?" He preached, "There is no God." Śūnyavāda. But there was necessity at that time. Why? That is explained by Jayadeva Gosvāmī:
- nindasi yajña-vidher ahaha śruti-jātaṁ
- sadaya-hṛdaya darśita-paśu-ghātam
- keśava dhṛta-buddha-śarīra jaya jagadīśa hare
At that time, people were killing animals like anything in the name of yajña. In the Vedas there are prescriptions that in the yajña a paśu can be, an animal can be slaughtered. In some yajña, not all. Tāmasika-yajña.