There are some puzzles that simply cannot be solved. We don’t have the ability. We don’t have the time. So, we twist and writhe, losing sleep and years in the process, trying to find answers. The better part of wisdom might be to put such puzzles down and get on with living the life we have, rather than obsessing over what we can do nothing about. In my experience, one word would capture most of the deep riddles that people struggle with: “Yesterday.” Because for every person wrestling with what is happening in their life today; for every person anxious about what might happen tomorrow, there are a dozen people stuck in what happened yesterday (See Isaiah 43:18-19).