The Stoic wisdom here isn't mere resignation—it's the recognition that resistance itself creates the disharmony we suffer. Marcus isn't asking you to pretend difficulty is pleasant, but rather to stop the exhausting internal argument with what's already happened, the second battle that multiplies your pain. When you catch yourself replaying an old argument or bitter disappointment, notice how the original hurt becomes secondary to your fury at the fact that it occurred at all; that second layer vanishes the moment you accept the irreversible. A parent who can hold their child's illness without the additional torment of *why this child, why now* hasn't become callous—they've simply stopped bleeding from a wound twice over.