 The idea of being light in a dark place. What Elijah felt like when he felt like the only one. A little candle in the midst of a dark culture. And God had to remind him, no, I've got 7,000 more like you. You're not the only candle. Salt is for corruption. Light is for darkness. Substantially, both are the same. But formally, one points to foulness, the other to ignorance, blindness, and folly.