I have experienced similar feelings as my iaido practice brought me closer to what I could only think of as a catharsis.

The ritual of practice sublimates violence into spending itself on imaginary attackers whose "death" will provoke neither guilt nor reprisals.
Rather than "Thou shalt not", "Thou shalt" until the desire to commit any act of violence is ritually expelled.

After a good practice session the world has become a better and friendlier place.