|Image: Blue Mountains, Sydney Australia|
R. Shimon ben Gamliel said" "The world endures on account of three things: judgment, truth and peace." [Pirkei Avot 1:18]
Man's body is a miniature world [Tikunei Zohar 69:101a]. One of the things that preserves this world is peace.
A contentious person is always in pain. At work he gets embroiled in arguments; at home he fights with his spouse. There is friction at his table and tension in his sleep.
A peace-loving person, in contrast, is calm and secure. Everyone likes him; no one makes trouble for him. He is happy to see others, and others are happy to see him. He eats in serenity and enjoys restful sleep.
That is why peace is called שׁלום - shalom. The word can be broken up into שׁלו "tranquil" and ם for מנוחה - "rest".
from the writings of the Ben Ish Hai