Puṣṭa-kṛṣṇa: What is the meaning of sac-cid-ānanda?
Prabhupāda: That is spirit soul. Sat means eternal, and cit means knowledge, and ānanda means bliss. So if we study ourself, this body is not eternal. Sat means eternal. So if you study this body... In the Bhagavad-gītā you will find, antavanta ime dehā nityasyoktāḥ śarīriṇaḥ (BG 2.18). This body is antavat; it will perish. Therefore it is not sat. Sat means eternal, and the body is not eternal. Therefore it is very difficult to understand what is sat because we have no education, no experience. Everything is annihilated, destroyed, anything material. So actually we have no experience what is sat. So... But Vedic instruction is sad gama asato mā: "Don't remain in asat, noneternal. Come to the platform of eternity." Sad gama asato mā. So that is our mission of life. The human form of life is distinct from the cats and dogs because if you instruct to the cats and dogs what is sat and what is asat, it is impossible for them to understand. It is not possible. Therefore Vedic instruction is asato mā: "Don't remain cats and dogs in the human form only. You come to the platform of eternity." Asato mā sad gama. So we must try what is eternal. So far in the present condition, as this material condition, we do not know what is actually eternal because our body is not eternal.