"How many demons' heads can you take with the blade in your hand?" Tetsu no Sosuke gave him an amused look. "That depends on how careful you are. Be bold, but pay attention to the details. Don't aim to play it safe; aim to know when you have your chance. Think over where to draw the line, and you'll understand in time."
As he spoke, he sat down with Tanjiro. "Besides that advice, I can't let you leave empty-handed. Ever since I became a Demon Hunter, I've reflected on every hard battle afterward, looking for my mistakes so I can correct them and strengthen what I lack. But memory has its limits, and I often forget things. I'll teach you a Meditation method I developed. It lets you peel back the Inner Spring and see your truest self. It can also bring back images of your battles. You can study them closely, immerse yourself in them, and return to the battlefield in your mind to feel where you fell short."
Tanjiro stared at him, dumbfounded. "You can really do that?"
"There's a lot in this world we can't explain. Demons exist, so why couldn't something like this?"
Tetsu no Sosuke had him calm his mind, then taught him the Meditation method.
Until now, he had taught it only to people close to him: Kanae, Shinobu Kocho, Kanao, Yuichiro, and Muichiro. No one else had received it.
Tanjiro was the first.
Tetsu no Sosuke had always found the boy interesting. One look at him, and he could feel the warmth in his eyes, as though a sun lay hidden in them.
It was hard not to like him. And that wasn't just because Tetsu no Sosuke had once watched his story and followed him as its protagonist.
The Meditation method was