We don't know why people don't do this sort of thing more often. It's not like there's a bad reason to leave a giant dragon skull on the beach.
Madness string 3137
The main thing, when a sword cuts into one's soul, is to keep a calm gaze, lose no blood, accept the coldness of the sword with the coldness of a stone. By means of the stab, after the stab, become invulnerable.