This is jñānam. But ask anybody at the present moment who is the owner, who is the occupier and what is the field of activities. If you ask three things, nobody will be able to answer. That means everyone is rascal at the present. Or they do not know. Kṣetra-kṣetrajñayor yaj-jñānam. Kṛṣṇa says: "This relationship between the field of action and the owner." Just like in agriculture. The land is owned by the state or the king, and it is rented or occupied by somebody else. And the land is the field of action.
So Kṛṣṇa is giving direction. Kṛṣṇa is giving direction, and the living entity is there. He is acting according to that direction. So both Kṛṣṇa and the living entity are sitting in one tree. That is stated in the Upaniṣad. Two birds are sitting in one tree. One is eating the fruit of the tree and other is simply witnessing. The witnessing bird is Kṛṣṇa, and the bird who is eating the fruits of the tree, he is the living entity. The Māyāvādī philosopher, they cannot distinguish between the jīva soul, jīvātmā, and Paramātmā. They know it, but because they are monists, to establish their theory, they say there is no two; there is one. No. Kṛṣṇa says two. One kṣetrajñaḥ, the jīvātmā, and the other kṣetrajñaḥ He is, Kṛṣṇa. The difference between the two is that the individual living entity knows only about his kṣetra, or body, but the other living entity, the supreme living entity, He knows all the bodies, everywhere, anywhere, throughout the whole creation. Sarvasya cāhaṁ hṛdi sanniviṣṭo (BG 15.15). This is the difference.
So material nature is actually the field of activities in our conditioned life. We have . . . manaḥ ṣaṣṭhānīndriyāṇi prakṛti-sthāni karṣati (BG 15.7). In the Fifteenth Chapter you'll find it, that who are these living entities, we? Kṛṣṇa says mamaivāṁśa: "They are all My parts and parcels." Mamaivāṁśa. Just like father and the son. A father has got many sons. Similarly, we are all sons of God.