What is the spiritual root of the concept of peace from the point of view of Kabbalah?
Answer: Peace in Hebrew is “shalom,” which implies a greeting. Usually this is a kind greeting from person to person or from nation to nation and it doesn’t matter who is involved. Shalom from the word ‘“shlemut”’ means perfection, wholeness, and completeness. I think this is the simplest and most correct meaning of the word “peace.”
From the point of view of Kabbalah, we can say that a perfect person, a perfect society, and a perfect reality are the concept of peace.
Indeed, when all the qualities in a system (a person, a society, the world) complement each other and they interact with each other correctly, this object is in the state of peace.
From KabTV’s “Kabbalah Express” 3/4/22