Muscle memory is the idea in sports where you, to truly master something, you must do it repeatedly. Through the repetition, which may take years and years, your body learns a new habit “in muscle memory,” not in head knowledge. You no longer have to think about it; it just happens naturally. Think of an NFL quarterback: from the moment the ball is snapped to thrown, most of them do that in under three seconds. At that moment they aren’t thinking about what they are doing; it is natural. Often in religious circles, people will talk about faith moving from the head to the heart, where it isn’t something you “think about” but something that comes naturally because it is a part of who you are. This comes from doing and remembering, and a practice like the Lord’s Supper is a great way to develop a muscle memory of faith.