In plain words
It takes the shape of a disease joined with enjoyment. Man must become a yogi, not a bhogi. What is bhoga? To waste one's life only in food, sleep, fear, mating and the like is bhoga. To take care of the body, food is very necessary. Bhikṣānnaṃ deharakṣārthaṃ vastraṃ śīta nivāraṇaṃ. The whole of man's life is bound up with disease itself.
A house of filth, a basket wasting away with diseases, to be waited on, a tuber that stirs at birth, a thorn bush that cannot cross the ocean of worldly life, a quiver of arrows: when we look and consider it, this body do not trust it to be steady; O mind, take refuge at Hari's feet.
It is only like a tuber that rots. It is like a chariot that falls apart. But we must take medicine to keep its disease away. What is disease? What is health? All are diseases. Hunger is a disease. Food is the medicine. Thirst is a disease. Water is the medicine. For all these, too, we go on taking one medicine or another. Wanting Ānanda is a disease. For Ānanda, the medicine for us is the doing of work. If we long for Ānanda and do not make the effort it needs, how will Ānanda be gained? Though Ānanda is his own true nature, man's effort is most necessary to enjoy it. If we put potato chapati, potato chapati on a plate and say "potato chapati, potato chapati" a hundred times, our stomach will not be filled. If we want to fill our stomach, we must set the mouth and the hand to work. With the hand we must do karma. With the mouth we must remember the divine Name. Only through the labour of these two does Ānanda come to us. So in this world there is not one thing that is not a disease for man. But we must make the effort to turn it into yoga. That is why even the śāstras said: he who eats once is a yogi. He who eats twice, they said, is a bhogi. He who eats three times, they said, is a rogi. He who eats four times, they said, is equal to one who is dead while alive. So we keep struggling always to fill our stomach, but we make no effort to make our life an ideal life, in happiness and peace, on a divine path.