In the animal society there is no question of religiosity, but in the human form of life, especially civilized human society . . . every society has got some form of religious principles. It doesn't matter whether it is Hinduism, Muhammadanism, Sikhism or Jewism, Christianism—there is some form of religious principles.
Everything is attempted for satisfying the yoga principles also. Yoga indriya-saṁyamaḥ—by controlling the mind. Mind is also indriya, the principal sense. We have got senses, and mind is the center of all senses, indriyāṇi parāṇy āhur (BG 3.42).
This body means combination of senses, but above the senses there is the mind. If the mind is disturbed, the senses cannot act. If the mind is in disorder, then the man is called mad, because he cannot use his senses properly. He cannot think properly, he cannot feel properly, neither he can act properly.
So Sūta Gosvāmī, who was speaking Śrīmad-Bhāgavatam to the sages at Naimiṣāraṇya . . . those who are Indians, they are well acquainted with the Naimiṣāraṇya land, it is in the Hardoi district, near Lucknow. The station, railway station, is named Nimsar, and the place is very nice for spiritual cultivation.