Yes, so then it occurs to you, that what you did yesterday, isn't necessarily what you will do today. You can decide to continue to beat your head against the same wall, or try another wall. Or maybe pick a spot where there are no walls.
And just because that wall has always stood, it's not true that it will always stand. It can fall. It can disintegrate. You can watch it vanish right before your eyes. You may think that that is "magic" but really, sometimes a wall isn't really a wall. It just has the appearance of a wall. It may be a misperception. A misconception.
So you beat and you find a new beat to the beat...