זְכָר־אֲנִ֥י מֶה־חָ֑לֶד עַל־מַה־שָּׁ֝֗וְא בָּרָ֥אתָ כָל־בְּנֵי־אָדָֽם׃
O remember how short my time is; For what vanity hast Thou created all the children of men!
Read kabbalistic (mystical) interpretation of Psalms 89:48: and classical mystical sources.