Physical pain, drowsiness, hunger, heat, cold, and other uncomfortable or unpleasant feelings should be separate from your rational mind and spirit. Basically, just because you feel something you do not like it doesn’t mean that’s all you should focus on. Aurelius reminds us that these various versions of “pain” can and should be endured, and that these sensations don’t last forever. So don’t exaggerate their effects. Basically, don’t make mountains out of molehills.
Now, to be fair, this is actually a riff on an old saying from Epicurus (as cited in the quote), but it’s a good take on it. Aurelius believed in the duality of mind and body; two separate things that work together in harmony. In this instance, he’s urging you to remember that whenever you are in discomfort. Just because you feel something physically does not mean you need to let it infect your mind.
This is essentially your basic “mind over matter” approach, or what some might call “mental toughness.” When you sense your attitude, demeanor, or intelligence being swayed by simple physical sensations, tell yourself that “you are giving in.” When you realize you’re letting your discomfort govern your entire self, you can stop it in its tracks and return control to your mind.
Of course, this isn’t to say that you shouldn’t address things that bring you discomfort. You don’t have to grin and bear pain “just because.” This is about self-awareness, and a oft-needed reminder that whining, complaining, and snapping at others is not beneficial to anyone, no matter what state you’re in. When you stub your toe on the couch, there’s no point in punching the cushion. When you feel tired or hungry, there’s no point in being grouchy with the people you care about. And when you feel cold, there’s no point in complaining about it endlessly. Go put on a damn jacket. Be strong, learn to endure, and let your rational mind stay in charge.