"Death is a challenge. It tells us not to waste time... It tells us to tell each other right now that we love each other. "
Imagine today was your last day on earth [G-d forbid!]. What would you do? I know what you wouldn't do - waste time! Well, our Holy Rabbis tell us to live every day as if it were our last. First of all, you never know. Secondly - imagine how much more we would accomplish and how little time we would have for nonsense.
Love and Blessings!