Have courage for the great sorrows of life and patience for the small ones; and when you have laboriously accomplished your daily task, go to sleep in peace.
The soul is that which denies the body. For example, that which refuses to run when the body trembles, to strike when the body is angry, to drink when the body is thirsty.
If you have done the best you can do and if you have gotten all you could extract from something, you have given all you had to give, then the time has come when you can do no more than say thank you and move on.