In plain words
In childhood, joining with many others, he becomes one with play and song; when youth blossoms, like the god of the flower bow, he roams about, infatuated with women; in middle age, sunk in worldly things, he clings to the earning of wealth; when old age comes, not thinking of Murahari, he frets that he lacks this and that; unable to give up his many evil habits, with no interest in seeking the path of Bhakti, he falls into the mire of karma and roams about in it: man mixes his birth with the dust.
Embodiments of Prema! For having taken on a human body, is this what we should achieve? Man's life is passing away like this, in worldly desires. In childhood, play and song; in youth, the scramble for the pleasures of the senses... In this way, at each age the thoughts of that age come to man, and he experiences them. Man is deluded into thinking that joy lies in these alone. But at the very end he learns that none of these is lasting. All worldly things are merely momentary, like bubbles of water. None of these can give man eternal Ānanda. For man to spoil his life for no more than this is madness.