We are not this body. I am not this body; you are not this body. We are changing body every moment, imperceptibly, changing body. Sometimes it is found that the child has grown now to become a boy. But he has not become suddenly a boy. The body has changed. Body has changed every minute. But all of a sudden or at a certain moment we see that the body has changed. So this is real knowledge, that "I am not this body. I am changing my body, and when I shall finally change this body I will get another body." This is my position. Tathā dehāntara-prāptiḥ (BG 2.13).
So Kṛṣṇa says, etad yo vetti taṁ prāhuḥ kṣetra-jñaḥ iti tad-vidaḥ. If one understands that he is not this body, he is different from this body... From practical example and practical experience one can understand it. Especially human being can understand it. And if the human being neglect this understanding, then he remains animal—sa eva go-kharaḥ (SB 10.84.13). That is the injunction of the śāstra.
- yasyātma-buddhiḥ kuṇape tri-dhātuke
- sva-dhīḥ kalatrādiṣu bhauma ijya-dhīḥ
- yat-tīrtha-buddhiḥ salile na karhicij
- janeṣv abhijñeṣu sa eva go-kharaḥ
- (SB 10.84.13)
Yasyātma-buddhiḥ kuṇape tri-dhātuke. This body, according to Ayurvedic system of medicine, this body is made of three elements—kapha, pitta, vāyu: mucus, bile, and cough. So anyway, so tri-dhātuke... This body, is made of material elements. I am spirit soul; I am not material element. Ahaṁ brahmāsmi: "I am spirit soul." This is knowledge. But if one does not take this knowledge, he remains with the bodily concept of life, "I finger," not "my finger," then he is in ignorance. "I head," not "my head." Nobody says, "I head." Everyone says "My head." But find out who is "I." This is knowledge.
Therefore Kṛṣṇa says etad yo vetti: "One who understands this simple education in the beginning, etad yo vetti, "if anyone understands this, that 'I am not this body, I am the owner of the body. I am the occupier of the body...' " The body is just like a rented house, and there are two interested person. One is the occupier, and the other is the owner.