So there are three phases of time: past, present and future. Time is eternal; I am also eternal. But because I am in the material world, the time is relatively divided into past, present and future. Relativity, the law of relativity—I have explained several times. Brahmā's past, present, future and the ant's past, present, future are not the same. Similarly, our past, present, future or the ant's past, present, future are not the same. Time is eternal, but according to the quality of the body, the past, present, future is calculated. So it is said in the Bhagavad-gītā... Kṛṣṇa says vedāhaṁ samatītāni (BG 7.26). Because Kṛṣṇa is not changing body, therefore He has no past, present, future. Those who are changing body, they have got past, present, future. I had my childhood. I have changed the body in this old age. Therefore I think, "In the past I was like this, or future, I will be like this." So this is relative. Time is eternal, we are eternal, but because we have accepted this temporary body, therefore we have to calculate past, present and future. So future means... Just like there is ordinary word in English, "Child is the father of man," future. The same child will be father or grandfather in future.
So this future, past, present, future, is being controlled by the three modes of material nature. If we practice in this life sattva-guṇa, then ūrdhvaṁ gacchanti sattva-sthāḥ: (BG 14.18) then we shall be promoted to the higher planetary system. Madhye tiṣṭhanti rājasāḥ. If we cultivate rajo-guṇa... Rajo-guṇa means kāma-lobha, kāma, simply desiring. This is called rajo-guṇa. "I want this, I want this, I want this." Because there is no satiation of want, therefore every man or woman planning something, "How my sense gratification will be fully satisfied." This is rajo-guṇa, kāma. Everyone is forgetting his real business. His real business is he should know, one should know, that "I am eternal. I have taken this temporary body and subjected to the laws of nature, birth, death and old age. So my real problem is how to become again eternal, not accepting any more birth, death, old age. That is my real business." But because I am infected with the material modes of nature, we are making different plans. Everyone is busy. Everyone is busy in different plans, forgetting his real business. This is called māyā. Māyā means..., ma means not; ya means this. Therefore māyā means when you understand, "This is not my business," then you are out of māyā.