Life is shorter than we think. Few of us ever think of tomorrow as being our last day on earth, much less of our next breath as being our last. No matter who we are, how well we take care of ourselves, or how much security we place around us, the end will always come sooner than we expect. When our time comes, there will be the inevitable regrets of things undone, words left unsaid, and opportunities never seized.
There are not enough years in our lifespan to do all we desire to do. Instead of viewing these facts through a morbid or depressing lens, we should instead use this knowledge to understand the urgency of our lives and prioritize our activities in a manner that reflects that urgency.