do (one's) heart good
To please one, especially by placing them in a more positive mental or emotional state; to ease one's mind. Spending time outdoors just does my heart good. Can you please reconcile with your sister? It would do my heart good to know that you two aren't fighting anymore.
do someone's heart good
Fig. to make someone feel good emotionally. It does my heart good to hear you two are back together. When she sent me a get-well card, it really did my heart good.
do somebody’s heart ˈgood (to do something)
make somebody feel happy, more cheerful, hopeful, etc: It did my heart good to see him looking so well. do (one's) heart good
To lift one's spirits; make one happy.