Now, Kṛṣṇa says: catur varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ (BG 4.13). Now the . . . when we are animals . . . we had to pass through animal bodies. By evolution, we have come to this human form of body. Now it is an opportunity to get out of this cycle of birth and death. This is our real problem. But people, because they have no education, poor fund of knowledge . . . there is no educational institution how transmigration of the soul takes place. They do not know. Big, big M.A., Ph.D.'s, but they do not know what is the actual position of the living entity. But that is the real problem. They do not know the real problem.
The real problem is . . . it is stated in the Bhagavad-gītā, janma-mṛtyu-jarā-vyādhi (BG 13.9): birth, death, old age and disease. This is real problem. Nobody wants to take birth. At least nobody wants to die. Birth and death. Wherever there is birth, there must be death. Anything which is born must die. So janma-mṛtyu. And old age. So long you live, you have to change your position. So one position is this old age. Just like we have become old. There are so many complaints. Jarā. And vyādhi: and when we become diseased. Everyone should become diseased. Everyone should become old. Everyone must die. This is the problem. Janma-mṛtyu-jarā-vyādhi duḥkha-doṣānudarśanam.
We are trying to mitigate all our miserable conditions of life. That is struggle for existence. We are scientist. We are discovering many counteracting processes to get out of distressed condition. But the difficult position, janma-mṛtyu-jarā-vyādhi, we are avoiding, because we cannot do anything. We cannot even . . . the so-called science, they cannot solve this problem. Although sometimes they falsely become proud that, "By science we shall become immortal," and so on . . . these things were tried before also by atheistic class of men like Rāvaṇa, Hiraṇyakaśipu. But it is not possible to become successful to stop birth, death, old age and disease. That is not possible. If there is any possible process, that is Kṛṣṇa consciousness. That is Kṛṣṇa consciousness.