Tamāla Kṛṣṇa: Prabhupāda? You mentioned that we must know..., if we know Kṛṣṇa, then we will know these other five things. And if we know those five things, then our lives will become perfect. Can you explain to us what time is?
Tamāla Kṛṣṇa: Explain time?
Prabhupāda: That I have already explained. Time is relative. (break) Time is eternal. Eternal. But it is... Just like Brahmā's duration of time. That is... According to our calculation, that is eternal, many, many millions of years. But Brahmā is also subjected to birth and death. Although time is eternal, but within this material world we are not eternal on account of material contamination. But time is eternal. Time is eternal; God is eternal; you are also eternal, living entity. Simply our work is not eternal. That can be changed. That we are... Changing our work... Suppose in this life you are American. Your work is different from the China. But next time, when you change your body to something else, your work changes. In this body you are human being. Next time, if you become a dog or a demigod, then your work changes. So we are changing our work according to the change of the body. Therefore work is not eternal. So our whole material existence is due to different kinds of work. So if we make the work also eternal, that is Kṛṣṇa consciousness activities. Then we come to the eternal. But in the material existence our work is not eternal. We have understood that "I am not this body." Theoretically. If not practically, theoretically because we have heard from Bhagavad-gītā that dehino 'smin yathā dehe kaumāraṁ yauvanaṁ jarā: (BG 2.13) "As the soul is changing the body every moment..." And I am not this body. The body is changing.
So body is not eternal, but actually every materialistic person is engaged in the bodily activities. He is acting as American. Why? Because his body is American. He is acting as Indian. Why? Because his body is Indian. He is acting as husband because his body is male. He is acting as wife because the body is female. You take all activities—it is due to this body. But if the soul is eternal, then one should seek: "Then what is my eternal activities? The body is not eternal, therefore these activities also not eternal. Then what is my real activity, eternal activity?" That is Kṛṣṇa consciousness, bhakti.
So this work is not eternal, but if you take to Kṛṣṇa consciousness, Kṛṣṇa conscious activity is eternal. Therefore there is no loss. Even if you cannot complete Kṛṣṇa consciousness activity—that we have already discussed in the last chapter—still, you are not in loss. Whatever you do... Svalpam apy asya dharmasya trāyate mahato bhayāt. Even it is little done, you get some asset. That will never be lost. Therefore you have to stick to this activity, Kṛṣṇa consciousness activity. Whatever you do, if we can complete, it is very nice. If not, whatever we do, that is not lost. That is eternal.