In the old days, the ninja fought against formidable enemies; Today we face our problems face to face. No matter how big or small they are, it takes great skill to turn them into favorable circumstances and through them to develop one's inner power. Peace is the absence of struggle, which is why the ninja, as a martial artist, avoids it: he knows that in struggle there are no winners. In modern society, struggle is an intention that we have firmly internalized in the hustle and bustle of everyday life, where most beliefs are based on fear, uncertainty and lack of personal power.