First of all we must know that. There is no question of happiness here. We are simply hankering, "If it would have been very nicely cool." And when it is cool, then you'll think, "If it had been nicely hot . . ." The same thing. Carvita-carvaṇānām. Carvita-carvaṇānām means chewing the chewed. We have tasted heat and cold both, but we are desiring, "If it would have been like this, if it had been like that, if it . . ." But never come to the conclusion that either heat or cool, we have to suffer. Mātrā-sparśās tu kaunteya. That is explained by Kṛṣṇa. So long you have got this, this material skin, then this heat and cold you'll have to suffer. Mātrā-sparśās tu kaunteya śītoṣṇa-sukha-duḥkha-dāḥ (BG 2.14). The śīta, the summer, the winter, or the summer season, neither of them are sources of happiness. But you are thinking like that. "If it would have been like this, if it would have been like this."
Therefore kāṅkṣa, akāṅkṣa. So if you become transcendentally situated, brahma-bhūta, there will be no more akāṅkṣa. There will be no more hankering either for this or that, because he knows . . . that is called jñāna. So after jñāna . . . that is required. Jñāna, in the human form of life, this knowledge is required. The animals cannot have jñāna. The human beings can have jñāna. This is knowledge that, "So long I'll possess this material body, I'll have to suffer. I'll have to suffer." Unless you come to this conclusion, there is no progress. If we remain attached to these bodily pains and pleasure . . . of course, nobody wants pains, but for pleasure you take to Kṛṣṇa consciousness. Of course, gradually you'll come to knowledge.