At Peace With Meaning
(idiomatic) Not menacing or hostile toward.
Example: 1904, B. M. Bower, "The Spirit of the Range" in The Lonesome Trail and Other Stories:
He lay down, cuddled the blankets up to his ears, closed his eyes and composed himself to sleep, at peace with his conscience and the world.
1611, Holy Bibleâ€”Authorized King James Version, Psalms, 1:4-5:
If I have rewarded evil unto him that was at peace with me; (yea, I have delivered him that without cause is mine enemy:) let the enemy persecute my soul, and take it.