just what occurs off the top o me head PM, question: has someone critisized an actual art project of yours?
if this is the case it could have caused this dream, where you reacted angrily and then stuffed the anger down. theres nothing makes a person madder than if u create something, a piece of work, put your heart in it, then someone dang it, critisizes it.

I'm just saying if you walked away agreeing with them, then you didn't express yourself well in that situation. it's ok to talk back to critisizers, to ask them why they feel that way. don't mean you have to accept what they say as true though.

do u mean, you said "leaving dead" I think you meant to say "living dead."

the aspect or main point of the dream as I see it, you were only hurting yourself to react angrily, you were telling yourself to control your anger, as it only hurts You, in the end.  Since you do martial arts, I can see why you would have a dream like this to illustrate wise use of emotions.

If I were going to take martial arts, I think I'd like to study Tai Chi. this is merely defensive manuevers of redirecting the opponents energy as the offensive party moves towards you (emotional energy also from another)  as their energy body (or comment of derogatory whatever) as they advance you swing them over your head, using their own force of energy by not obstructing their pathway with yours.

I'm sure your teachers told you all about this. 
so the point is to deflect critisism which could in the end be all wrong for you. it is very hard to do with persons in authority, but you seem maybe wanting to learn but your teachers, you find out are not always right on the button with their wisdoms, so have to express yourself and not get mad.

love, alysia