Can someone explain the "spiritual component" of martial arts? My uncle has volunteered to pay for martial arts as long as the have some sort of "spirituality" with them. So boxing, krav maga, and any sort of "combat" martial art is out, because they're "to violent", along with a complete absence of "spirituality" "self discovery" and a ton of other crap. I was wondering if there was any sort of practical, real world basis for this?