Here the word call becomes important.
We are not called to save the world, solve all problems, and help all people. But we each have our own unique call, in our families, in our work, in our world. We have to keep asking God to help us see clearly what our call is and to give us the strength to live out that call with trust. Then we will discover that our faithfulness to a small task is the most healing response to the illnesses of our time.