Vāsudevaḥ sarvam iti sa mahātmā su-durlabhaḥ (BG 7.19). Such kind of mahātmā is very rare.
That is the verdict of all Vedic literature, and confirmed by Śrī Caitanya Mahāprabhu: koti-mukta-madhye durlabha kṛṣṇa-bhakta (CC Madhya 19.148). Kṛṣṇa-bhakta, a pure devotee of Kṛṣṇa, is very rarely to be found out amongst the muktas, amongst the liberated soul. Others are trying to become liberated, but a kṛṣṇa-bhakta is above liberation. Pañcama-puruṣārtha (CC Adi 7.85). People are busy for dharma artha kāma mokṣa (SB 4.8.41, CC Adi 1.90). Some of them are busy to become religious. Of course, without religious life, there . . . there is no human society. Dharmeṇa hīna paśubhiḥ samānāḥ (Hitopadeśa 25). Unless a society takes to religiosity, it is not human society.
Therefore we see any civilized human society, there is a kind of religious system. It doesn't matter whether it is Hinduism, Christianism or Buddhism or Muhammadanism, but there must be a religious system. Without this system, that human society is not considered as human society. That is animal society.
In the . . . even I understand that in America the Red Indians, who are supposed to be not civilized, they had also a religious system. So may be a perverted form of religious system. Similarly, in India also there are primitive races in the jungles, they have also . . . religious system means approving the authority of some Supreme Being. That is religious system. So in the animal society there is no such conception that, "There is God. We have got some relationship with God," what is that relationship. This type of discussion cannot be present in the animal society.