This refers to things that are done on earth. See how you translated this in [Ecclesiastes 1:3](../01/01.md). AT: "on the earth" (See: [[rc://en/ta/man/translate/figs-idiom]])
This speaks of successful men walking like slaves walk, because slaves were usually forced to walk and were not permitted to ride. (See: [[rc://en/ta/man/translate/figs-simile]])