pumso varsa-satam hy ayus
nisphalam yad asau ratryam
sete 'ndham prapitas tamah
pumsah-of every human being; varsa-satam-one hundred years; hi-indeed; ayuh-duration of life; tat-of that; ardham-half; ca-and; ajita-atmanah-of a person who is a servant of his senses; nisphalam-without profit, without meaning; yat-because; asau-that person; ratryam-at night; sete-sleeps; andham-ignorance (forgetting his body and soul); prapitah-being completely possessed of; tamah-darkness.