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 Bible—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.