We are interested in the subject to others, suffering, why it is important that the us separately. The more we worry about others?, he's suffering with the suffering, not just us.
We are going to suffer, why care about other people. It is important to separate ourselves The more we worry that someone else will be. That increased his suffering Not just us suffering
We care about people suffering? The important thing is ourselves. The more we worry about what others are. That makes him suffering, not just the distress.