I have never been in a mine shaft, but I have been in the catacombs. Being underground in cramped quarters is not always pleasant. It is poorly lit, there is not a lot of room, and it can be cold and damp. But what is absolutely important is to have light. Without light, it is pitch black underground. The saint we celebrate today has a name that means light. And she is often pictured as a saint of light, with candles on her head. Some think this is related to her being able to see in the catacombs.
On the surface of her life, it can seem like it was not easy for her to see. She suffered an absolutely horrible martyrdom. Turned over to authorities by a man who wanted to marry her, because she would not marry him. But look at what happened through her Christian witness. Faith in the Nordic countries began even though she never went there. Because she allowed God to light her way, she became a beacon of faith to people she did not know.