For you do not know what a day may bring forth. Time is not our own. In fact, our life is not our own. Live as if we have forever. Then ultimate interruption.
Life is too short to waste it.
When you come to understand your resources are limited, you begin to spend them much more wisely. He is not telling me this just to strike fear into my heart or depress me. But to make me realize the only thing certain about tomorrow is that God is in control. We are not guaranteed anything but day to day. Extravagant claims which one cannot fulfill.