Real happiness exists only in devotional service, not in acquiring or rejecting material things for oneself.Listen — Srila Prabhupada Uvaca
The Nectar of Devotion — January 29, 1973, Calcutta 730129ND-CALCUTTA [37:43 Minutes] NOD_730129ND-CALCUTTA Bhavānanda: [reading] "...If someone has desire for material enjoyment or for becoming one with the Supreme, these are both considered material concepts." Prabhupāda: Yes. Three kinds of happinesses: bhoga, tyāga and bhakti, sevā. Bhoga tyāga sevā. The karmīs, they are after bhoga, sense enjoyment.
And the jñānīs, they are after another side of negation of sense enjoyment. When one is fed up with sense enjoyment... Just like in your country, the young boys, they are practically fed up with the way of sense enjoyment as their fathers and grandfathers had done. So in the name of tyāga, renunciation, they have taken another kind of sense enjoyment—intoxication, unrestricted sex.
So this is also another sense enjoyment. Bhoga and tyāga. Real enjoyment is devotion. There is a very practical example: Just like if you get all of a sudden a certain amount of money, say, one hundred rupees' note lying on the street, if you get... Or lying here.
So if you take it, your conscience will beat, because that does not belong to you; you have picked up. You'll always think, "Oh, I am taking somebody's money. Whose money it was? I'm doing some sinful." In this way, your mind will disturb.
So that is the taking. And similarly, if you don't take, if you leave it there, then you'll also be disturbed. You'll think, "Somebody has left this money here. So I did not collect it.
Somebody will collect it, and he will take it away. This is not nice." The best thing is that you pick it up and if you deliver to the person who has lost the money or who has left that money. Three things. The one thing is bhoga, if you take yourself.
And if you don't take, that is tyāga. And if you pick it up and deliver to the right person, that is devotion. So everything belongs to Kṛṣṇa. Kṛṣṇa says, bhoktāraṁ yajña-tapasāṁ sarva-loka-maheśvaram [Bg. 5.29]: "I am the supreme proprietor, mahā-īśvara." Mahā īśvaraṁ parameśvaram. So everyone īśvara, but nobody is mahā-īśvara or parameśvara.