It was soon after Thanksgiving when Chelsen Vicari noticed a new foreign-missions display at the Southern Baptist church she joined after moving to Fancy Gap, in the Southwest Virginia hills.

What caught her eye was a large -- sort of -- image of Lottie Moon, a pioneer missionary and educator in the late 19th Century.

"I was relatively new to Southern Baptist life, so I had no idea who she was," said Vicari, describing that moment two years ago. "I couldn't understand why they made the cardboard cutout so short. … I asked around and what everybody kept telling me was that she was a missionary in China and that she was really short -- like 4-foot-3."

Vicari kept digging and found details that, as a writer, left her intrigued. For starters, the Southern Baptist project long known as the Lottie Moon Christmas Offering -- with deep ties to the Women's Missionary Union -- has raised $4.4 billion since 1888. The International Mission Board's 2017 goal is $160 million.

Eventually, Vicari read many of the letters Moon began writing after she reached China in 1873. These inspiring and poignant epistles, over her 40 years of service, helped change how Baptists built their global work in missions.

The letters challenged comfortable Americans to consider the needs of suffering people in China. But they also included blunt quotations such as: "I have a firm conviction that I am immortal until my work is done," and "I would I had a thousand lives that I might give them to the women of China!"

Moon died on Christmas Eve, 1912, her body weakened by a near-starvation diet she adopted while serving others during a famine.