One day, a monk traveled into the mountain where Gensha Shibi resided to see the Zen master and study Zen with him. The monk said to Gensha:
-I am a new comer, please be kind to tell me where I can enter the Zen gate.
But where can we find peace? What action can we take that is free of violence? Even to breathe is to rip apart the molecules of the air.
I think you must distinguish which peace you are talking about. Peace among humans or peace at the molecular level. Usually when most people talk about peace, it is about people getting along. Having a sense of cooperation and nothing bad is going to happen.
If you talk about peace in Zen ... then it is a sense of no-self, emptiness or no sense of self.