So Kṛṣṇa is suggesting that first of all jñāna. The rascals have no knowledge how to become happy. They are thinking, "We shall...," they will be happy by drinking wine and eating meat and having sex life unlimitedly. They're thinking like that, so rascal. The whole civilization is condemned. They do not know how to become happy. They do not know how to become happy. Mūḍha. They do not know. The happiness is only in Kṛṣṇa consciousness. This is the fact. Kṛṣṇa assures that, that bahavaḥ, many, jñāna-tapasā...
First of all, one must know that the way in which you are finding out, trying to, trying to find out happiness, that is nonsense. That is not possible. We have to give up all these things. That is tapasya. Voluntarily give up all these things. The more we are advanced means more we have given up all these things. Eating, sleeping, mating and defending. This is the position. So vīta-rāga-bhaya-krodhāḥ... (BG 2.56).
So how it is possible? How to become detached? Man-mayā. "Always be absorbed in My thought." Or man-mayā means... Mat means "mine," mayā, "of Me." "Thinking of Me." That is recommended. Man-manā bhava mad-bhakto mad-yājī māṁ namaskuru (BG 18.65). This is the process. Always think of Kṛṣṇa, man-manāḥ. This is easy. Just like you love somebody. So if you chant his name, if you think of him, then you'll always remember. Similarly, if you simply think of Kṛṣṇa, if you simply chant Hare Kṛṣṇa name, then you remain man-mayā.