This is a forbidden jutsu. There's so much to understand about this technique. It will teach you guys so many different things. The key thing here is focus. That's all you guys really need to learn from this. adept meditators can comfortably do this for like, 20 minutes, 30 minutes or even up to an hour. Tratica is the best practice to learn relaxed focus. And it's especially in the second phase of tratica, after we close our eyes.