Only time will 'heal the rift/breach' between the two families. [=make the two families become friendly again]
The tree sap is believed to have 'healing' powers.
After the divorce, he needed some time to 'heal'.
(..) and keep the shoulders loose. Not that. How did you find peace? I took away your parents. Everything. I scarred you for life. See, that's the thing, Shen. Scars heal. No, they don't. Wounds heal. Oh, yeah. What do scars do? They fade, I guess? - I don't care what scars do. - You should, Shen. (..)2011 Kung Fu Panda 2
(..) I'll get up. Here we go. - No more running, Shen. - So it seems. Now... answers. Oh, you want to know so badly. You think knowing will heal you, huh? Fill some crater in your soul? Well, here's your answer. Your parents didn't love you. But here... ...let me heal you! (..)2011 Kung Fu Panda 2