Deep thoughts (in deep snow)

What could be nicer than telling a loved one you are thinking of them — especially when that person is in the hospital?

Here's one: Sending a message that would be seen by every patient at Chicago's Rush University Medical Center — and many more around the world.

That's what happened two weeks ago in Chicago with a photo that has gone viral.

The message started as "HI MOM" (with a smiley face inside the O) stomped out in the deep snow atop a rooftop garage facing the hospital. It was done by 14-year-old William Hart, who wanted to cheer up his mother, Sharon, who was undergoing chemotherapy treatment for acute myeloid leukemia.

William later went back to the rooftop with his father and uncle to add "GOD BLESS U!"

Sharon was thrilled — and so were all of the other patients and families who were drawn to their windows to read the message of hope and love. This is what she told The Chicago Tribune:

“My son has never done anything like this before. He is a very caring child and very loving. ... He acted on instinct and from what was in his heart. I’m glad so many people got to see the message and that it touched so many. It shows how big God is.”

The simplest things often make the biggest impact.