Some grief is required. Proper grief according to Seneca is when our reason “will maintain a mean which will copy neither indifference nor madness, and will keep us in the state that is the mark of an affectionate, and not an unbalanced, mind.” We should let the tears flow, but let them also cease. And we can sigh deeply as long as we stop at some point. Because at some point the consequences of grief are more harmful than what aroused it in the first place, says Marcus Aurelius.
