Recognize the body as your field of activity, not your true self; you are the eternal knower within.Listen — Srila Prabhupada Uvaca
Bhagavad-gītā 13.1-3 — October 13, 1975, Durban 751013BG-DURBAN [57:05 Minutes] BG-13.01-03_751013BG-DURBAN Prabhupāda: Oṁ namo bhagavate vāsudevāya. We are reading one chapter from Bhagavad-gītā, Thirteenth Chapter. The subject matter is nature, the enjoyer and consciousness. In Sanskrit it is called kṣetra-kṣetra-jña [Bg. 13.27].
Kṣetra means the field. Just like an agriculturist, they work on the field. The worker or the agriculturist owns the land, and he works there, and according to his labor he enjoys the fruits. Similarly, we have been given this body as the field of activity.
Every one of us, not only human being, but also other living entities... There are eight million four hundred thousand forms of living entities. Jalajā nava-lakṣāṇi. In the water there are nine hundred thousand forms of living entity. Then, jalajā nava-lakṣāṇi sthāvarā lakṣa-viṁśati [Padma Purāṇa].
Sthāvarāḥ means the living entities who cannot move, just like the trees, plants, grass, vegetables. They are standing in one place. They are also called "having no leg." Ahastāni sahastānām apadāni catuṣ-padām. This is nature's law, that the living entities which have no hands, they are eatable for the living entities who have hands.
Ahastāni sahastānām apadāni catuṣ-padām. And the living entities which cannot move, they are the food for the living entities which has got four legs. Phalgūni mahatāṁ tatra jīvo jīvasya jīvanam. In this way, the weak is the food for the strong. This is the law of nature, that one living entity is the food for another living entity.
So when a person eats another living entity, it is not unnatural. This is nature's law. But when you come to the human form of living entity, you must use your discrimination. Just like one living entity is food for the another living entity, it does not mean...
In the lower animals sometimes the father-mother eat the offspring, but in the history of human society it has not come into notice that the father-mother eating the offspring. But time has come when the mother is killing offspring. That has come already. This is due to Kali-yuga. So here Arjuna's question is to understand the field and the worker on the field.