The way you help heal the world is you start with your own family.
Do we know our poor people? Do we know the poor in our house, in our family? Perhaps they are not hungry for a piece of bread. Perhaps our children, husband, wife, are not hungry, or naked, or dispossessed, but are you sure there is no one there who feels unwanted, deprived of affection?
The family that prays together stays together, and if they stay together they will love one another as God has loved each one of them. And works of love are always works of peace.
If you want to have world peace, go to your house and love your family.