In the Bhagavad-gītā it is said, janma-mṛtyu-jarā-vyādhi-duḥkha-doṣānudarśanam (BG 13.9). We are trying to be happy, fighting with unhappiness, but we do not know our real unhappiness are that we have to die, we have to take birth again, we have to become diseased and we have to accept old age. Janma-mṛtyu-jarā-vyādhi duḥkha-doṣānudarśanam. This is intelligence that, "I am trying to solve all the problems of life by advancement of civilization, education, scientific knowledge and so many things. That's all right. But what is the solution of my these four principle of miserable condition: birth, death, old age and disease?" And because we cannot make any solution, we set aside these four problems. We go on with the temporary problems and become busy to solve it, and in this way we waste our this valuable human form of life like the cats and dogs. This is the instruction.
So we should not do that. We must be sober, and we must . . . and it is not very difficult. The knowledge is there in the Vedic literature. And it is . . . everyone can accept it. It is not a sectarian, so-called religious principle. It is scientific. Every human being should understand his position. Every human being should not waste his valuable time. So therefore Narottama dāsa Ṭhākura, a great devotee and a great Vaiṣṇava ācārya, he has sung a nice song, that hari hari biphale janama goṅāinu: "My dear Lord, I got this chance of human form of body. Unfortunately I have wasted my time without any self-realization." Hari hari biphale, janama goṅāinu. Manuṣya janama pāiyā, rādhā kṛṣṇa nā bhajiyā: "I got this very valuable form of life, human form of life, but instead of understanding what is God, Rādhā-Kṛṣṇa," jāniyā śuniyā biṣa khāinu, "knowingly I have drunk poison." This is the opportunity to understand God and make solution of all different types of births and deaths and transmigration from one body to another. And as soon as I get a material body, immediately there are so many miserable condition. But I am . . . as spirit soul, part and parcel of God, I have nothing to do with all these things, but I have been forced to be working with these problems of life. This is human intelligence.
Therefore he requires to live a saintly life. It is not possible, of course, that everyone should become saintly. That is not possible. Therefore in the Vedic civilization it is prescribed, varṇāśrama-dharma. Varṇāśrama-dharma. Varṇa means four classification of the society, and āśrama means four division of spiritual life. The society, it is not meant for any particular nation or particular community. It is meant for the whole human society. Kṛṣṇa says in the Bhagavad-gītā that cātur-varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ (BG 4.13). The human society should be divided into four groups. What is that? The first-class men. There are first-class, second-class, third-class, fourth-class men. We have got our experience. Not that everyone is equally intelligent. No. There is difference of classification or intelligence or genuineness. There are so many things, division. So here also you have got division, classification. That is natural.