People and situations show up in our lives so we can learn and grow. Though I wouldn't encourage you to seek out pain, it's not something to avoid either. It's just part of life -- and it can be a gift.
Run this exercise through all the areas of your life: career, health and fitness, relationships, spirituality, family, and personal growth. As you do so, you'll start to find a pattern or theme that will lead you to a sense of your overall purpose.