"If something in your writing gives support to people in their lives, that's more than just entertainment — which is what we writers all struggle to do, to touch people."
All art is about touching people. Have you ever been moved by a painting? Or cried at the end of a movie? Or spend hours lost in a fictional world created by a writer? In the end, the reason we create is to communicate our feelings to others — to connect emotionally with other people. Does your art move you to tears? Then it will probably touch others as well.
Here is an interview with Dean Koontz.