Their love, hatred, and envy

This refers to the love, hatred, and envy that the dead people showed others when they were alive.

anything done

This can be stated in active form. AT: "anything that people do" (See: rc://en/ta/man/translate/figs-activepassive)

This refers to things that are done on earth. See how you translated this in Ecclesiastes 1:3. AT: "on the earth" (See: rc://en/ta/man/translate/figs-idiom)

These two phrases share similar meanings and emphasize the importance of enjoying the basic activities of life. (See: rc://en/ta/man/translate/figs-parallelism)

This refers to food in general. AT: "your food" (See: rc://en/ta/man/translate/figs-synecdoche)

Here the word "heart" refers to the emotions. AT: "drink your wine joyfully" (See: rc://en/ta/man/translate/figs-metonymy)

Wearing white clothes and anointing one's head with oil were both signs of gladness and celebration. (See: rc://en/ta/man/translate/translate-symaction)

This can be stated in active form. AT: "anoint your head with oil" (See: rc://en/ta/man/translate/figs-activepassive)