Macarena Valdes’s skill in mapping underground mines made a real difference in the rescue of the 33 Chilean miners trapped after an explosion in October 2010. Drilling to find the exact place where the men were located was like “trying to shoot a fly from 700 meters away,” she said. With her mining experience, Valdes was able to guide the probe to where the miners were entombed, which helped bring about their dramatic rescue.

In efforts to carry out spiritual rescues, it’s easy to become discouraged. Although the apostle Paul faced even greater obstacles, he said, “We do not lose heart”…