Those who are under the conception that there is no owner, and the body is everything, they are less than tamo-guṇa. Actually animals. They have been described as being animal. Those who are thinking like the dog that, "I am this body . . ." The dog is also thinking, "I am this body," and a man is also thinking, "I am this body." Then where is the difference between the dog and the man? When man comes to the understanding that, "I am not this body; I am soul," then knowledge begins. Before that, he is ignorant like animal. Yasyātma-buddhiḥ kuṇape tri-dhātuke (SB 10.84.13).
Now, to come to the real knowledge, real platform of knowledge, the cultivation is required. So cultivation is required. Suppose somebody has said, the same example, that there is fire in the wood. So if you simply remain satisfied with the wood—"There is fire"—that is called tamo-guṇa, not developed. Again, when there is smoke, that is another platform. But when one appreciates the flames of, that is sattva-guṇa. Therefore Kṛṣṇa says here, tri-vidhā bhavati śraddhā dehināṁ sā svabhāva-jā. If one is cultivating his life like hogs and cats and dogs—the behavior is also like that and remaining in that position—so his faith and one who is advanced, who is worshiping Deity, and having three times bath, and chanting mantras, Hare Kṛṣṇa, they are not equal. That is not possible, because one is situated in the sattva-guṇa and the other is situated in tamo-guṇa, although the tamo-guṇas, the persons who are in the darkness of knowledge, they have got their faith. It is not that they have no faith. They have got faith. But that faith is in the lowest status of life. That faith will not help him for spiritual realization. Therefore Kṛṣṇa said, tri-vidhā bhavati śraddhā dehināṁ sā svabhāva-jā. Svabhāva-jā means natural. Because his body is not yet purified, therefore he remains in the status of tamo-guṇa, or ignorance. Tri-vidhā bhavati śraddhā dehināṁ sā svabhāva-jā.
Therefore we have to change. Just like a man diseased, he can be changed into a healthy person provided it follows the medical rules and regulation, takes medicine, diet and . . . that is possible. So if one does not follow the regulation, rules and regulation, he remains there, diseased. It is not that, that "We have become now free. We can talk nonsensically and we can behave like nonsense.