An image of Santa Claus taking a knee in front of a veteran is making rounds on social media. The woman who posted the image said it was a sight of "genuine gratefulness."

The image was captured at the Concord Mall in Wilmington, Del. and shared by Gina Wilbur on Facebook Dec. 1. Since then, it's garnered more than 10,000 reactions, 550 comments and nearly 4,000 shares.

In the post, Wilbur described how she witnessed the heartfelt moment while taking a break from Christmas shopping.

She said Santa saw the veteran sitting nearby and walked over to him from his workshop. When Santa approached him, the veteran stood up and Santa took a knee.

Wilbur described the conversation she overheard in the post, saying Santa told the veteran about the people he personally knew who served in the United States military. Santa shook the veteran's hand "with genuine gratefulness, thanking him for his service" before he got up and returned to the children, she said in the post.

"Best moment of my day," Wilbur said in the post.

WTXF-TV reported that the veteran was a 93-year-old man named Bob Smiley who served in World War II.