en_tn/ecc/02/21.md

a great tragedy

"a great disaster"

For what profit does the person gain who works so hard and tries in his heart to complete his labors under the sun?

AT: "For the person who works so hard and tries in his heart to complete his labors under the sun gains nothing." (See: rc://en/ta/man/translate/figs-rquestion)

works so hard and tries in his heart

These two phrases mean basically the same thing and are combined for emphasis. (See: rc://en/ta/man/translate/figs-parallelism)

tries in his heart

AT: "tries anxiously" (See: rc://en/ta/man/translate/figs-idiom)

painful and stressful

These two words mean basically the same thing and are combined for emphasis. (See: rc://en/ta/man/translate/figs-doublet)

his soul does not find rest

AT: "his mind does not rest" or "he continues to worry" (See: rc://en/ta/man/translate/figs-idiom and rc://en/ta/man/translate/figs-metonymy)