Encouraging a friend to Forgive

My friend has so often resented the way his mother brought him up.
I recently acknowledged him for his emotional maturity, and the way he has gained such strength from his childhood experience.
He gratefully accepted my acknowledgement, wholeheartedly thanking me.
I love being able to contribute more in this way since having forgiven my own mother for the pain that I felt in my own childhood, and become grateful for the strengths I have gained from the experience.