The body is just like a rented house, and there are two interested person. One is the occupier, and the other is the owner. That will be explained, that I am the occupier of this body. I am not actually owner. The owner is Kṛṣṇa, or God. This house is owned by Kṛṣṇa, or God. But just like the field: The agriculturist, the cultivator, takes the land from the king or the government. He pays little tax, and he works on it. Similarly, everything belongs to God. Īśāvāsyam idaṁ sarvam (ISO 1). Nothing belongs to us. We also belong to God. This is knowledge. But God has given this piece of farm or land for our activities. That will be explained in the next verse. Kṛṣṇa says, kṣetra-jñaṁ cāpi māṁ viddhi (BG 13.3). Kṣetra-jña means . . . body is kṣetra, and the living entity is the occupier of this body. So Kṛṣṇa said: "There is another occupier, interested person, of this body." Kṣetra-jñaṁ cāpi māṁ viddhi. "That is myself." Kṣetra-jñaṁ cāpi māṁ viddhi sarva-kṣetreṣu bhārata.
So what is the distinction between these two person? One is the occupier, and the other is the owner. He says, sarva-kṣetreṣu bhārata: "In all different bodies I am the owner." The living entity is the occupier. Just like a big landlord, he has got many houses, and in each house or each apartment there are separate tenants; similarly these, everything, belongs to God. Īśāvāsyam idaṁ sarvam (ISO 1). Everything belongs to God. Nothing belongs to us. But the same relationship—He is the owner, we are simply occupier. There are two persons interested in this body: one is the individual soul, living entity, and the other is the Supersoul, God. He is also within this body.
Where He is staying? Īśvaraḥ sarva-bhūtānāṁ hṛd-deśe 'rjuna tiṣṭhati (BG 18.61). God is living within the core of the heart, and the living entity, he is also living within this core of heart. They are living just like two birds sitting on the branch of one tree. These are the Vedic statement. There are two birds sitting on the branch of the same tree. One bird is eating the fruit of the tree, and the other bird, simply witnessing. This is the Vedic statement. So the eating bird we are, living entity. We are eating the fruit as we are working, and the result of our working we are enjoying. But God, the Supersoul, He is not interested in eating the fruits of the tree. He is self-satisfied. He is simply observing how you are working. Because we are working with this body, and God is situated in the same heart. So God is there, and we, individual soul, also there.
So then why He is there? Because He is friend. Suhṛdaṁ sarva-bhūtānām (BG 5.29). It is stated in the Vedas that two friendly birds. God is our actual friend, well-wisher friend, suhṛdam. He is simply trying to turn our face towards Him. So long he does not do so, he is changing different body, and God is also going with him—He is so friendly—just to advise him in due time that "Why you are changing from one body to another, one body to another? Why don't you come to Me and live peacefully in blissful life?" That is God's mission. Yadā yadā hi dharmasya glānir bhavati, tadātmānaṁ sṛjāmy aham (BG 4.7).
So God is so great friend of ours. He is always witnessing, witnessing. And as I am desiring, God is giving us facility, "All right, you want to enjoy like this? You take this body and enjoy." Actually you are not enjoying. When we have no discrimination of food, we can eat anything and everything, just like the hogs and pigs. So God says: "All right, you take the body of a pig and hog, and you can eat even up to stool. I give you the facility." That is as we are desiring, so God is supplying a type of body for our enjoyment.