It doesn't change the hungry child's life when you plan to give her food. It doesn't change the grieving man's life when you think about giving him a hug. Lives are changed by your action not your intentions or good wishes. The smile and conversation you have with someone could be the difference between suicide and carrying on for another day. The meal you give a homeless man could be the difference between disease and health. Your kind act, your compassionate ear, and your lifting hand could be the difference between hope and despair.
You can be the difference.