Who is CPY?
Yoda told Luke “your weapons, you will not need them” when he entered the cave.
He tells him that what he will find in the cave is only what he takes with him. That’s why he told him not to take it. If he takes fear and aggression into the cave, that is what he will find. It had nothing to do with being a pacifist.
Irrelevant because he doesn’t use a lightsaber in the entire OT. He doesn’t even fight in the OT. He’s on death’s doorstep. And yet somehow, 20 years ealier (a blink of an eye in his lifespan), he’s using a lightsaber and jumping around like Daffy Duck. That’s not the Yoda character that appeared in the OT.
At least he’s not fighting in TPM, but only because Lucas temporarily stuck with a puppet for one more movie.