All so-called brahmavādī, they say that "We have become liberated," but not liberated. That is simply concoction, vimukta-māninaḥ. They think like that. Actually they are not liberated. Aviśuddha-buddhayaḥ. Without being liberated, when one speaks that, "I have become liberated," that means aviśuddha-buddhayaḥ: the intelligence is not clear. He does not know what is liberation. Liberation means prasanna-manasa, full of joyfulness. That is liberation. Evaṁ prasanna-manasaḥ, bhagavat-tattva . . . bhagavat-tattva-vijñānam (SB 1.2.20). Tattva means truth. You have to understand Bhagavān in truth.
So that, to understand in truth, that is a science. That is not sentiment. Vijñāna. In another place Kṛṣṇa says, to advise Brahmā, catuḥ-śloki-bhāgavata (SB 2.9.33/34/35/36), jñānam . . . in the Bhagavad-gītā also, jñānaṁ sa-vijñānam. Jñānaṁ me parama-guhyaṁ yad vijñāna-samanvitam (SB 2.9.31). The jñānaṁ me parama-guhyam, the knowledge of the Supreme Personality of Godhead, is very, very confidential. Jñānaṁ me parama-guhyaṁ yad vijñāna-samanvitam. It is not sentiment. It is full of scientific knowledge.
So when we understand the truth, the Absolute Truth, scientifically, that is called bhagavat-tattva-vijñānam. That bhagavat-tattva-vijñānam is understandable by a person who is liberated. One who is very busy, anxious with politics, sociology, humanitarianism, one who is very busy always in politics, how he can become interested or how he can understand bhagavat-tattva-vijñānam? That is not possible.