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'.
(..) I'm going south to find more Pawnee. My heart bleeds ... But revenge is in the creator's hands. You will ride with me ... Your body is rotten. Need to heal. You could die. Yeah! There she is. We did it. You ought to be proud of yourself boy. (..)2015 The Revenant