So Prahlāda Mahārāja says that this sense gratification process is already fixed up. You cannot increase it or decrease it. That is stated here. Sarvatra labhyate daivād. Daivāt means by the arrangement of the Supreme. That is arranged. Sarvatra labhyate, sense gratification. Now take for example the hog. He is also busy in sense gratification. He is eating stool and becoming fatty, and as soon as there is sex desire, without any discrimination he enjoys many she-hogs, never mind sister or mother, because the life is so made that he will enjoy in this way.
So Prahlāda Mahārāja says that according to the body, your happiness and distress or enjoyment. We do not know what is our happiness. According to body, I think this is the standard of happiness. Somebody thinks that, "By eating such-and-such thing, I will be happy," just like the hog. And somebody thinks, "No, this is not." One man's food, another man's poison. So everything is food and everything is poison according to the body. One thing is poison for me, but the same poison is food for others. That is for enjoyment.
Therefore Prahlāda Mahārāja says that don't bother about that thing to satisfy your senses; that is already fixed up according to your body. Instead of wasting your energy in that way for so-called happiness, you just try to understand what is Kṛṣṇa consciousness, what is bhāgavata-dharma.