My head canon is like this. Sword guy is hanging out in his room, sitting in a lotus position, sword displayed on a wooden stand in front of him, candles arranged around him, sword guy deep in meditation.

All of a sudden, from the floor below, sword guy hears the unmistakable sound of someone breaking into his home. He does not fear. He does not panic. He stands up, grabs his katana, and calmly says, “at last, my time has come…”