Because life is all about lessons, which includes the circumstance that occurred the day before and the one that occurred the next day. The one that occurred the day before was awful enough, so you thought, but now seems smaller compared to what happened the next day. Then at some point in time, we learn there is a bottom line, a silver lining, a solution, a lesson, and a response. The effects of the response leave behind an influence and all the influences, collectively, resonate through the minds of our family members, close friends, or passers by. That influence can represent a golden lesson to someone else's life.