These are only a few of the images used in the Bible to describe the tenuous hold we have on life. We tend to think of our lives in terms of years. Long, comfortable periods of time marked by seasons and celebrations. The Bible repeatedly refers to our lives in terms of days. Short, staccato flashes of time that disappear as quickly as they come.
Years are luxurious.
Days are demanding.
Moses, in Psalm 90:12, asks God to "teach us to number our days aright that we may gain a heart of wisdom." Numbering our days. There's a thought. Have you considered how many you have? What if you only had a few remaining? Would you live any differently? I believe Moses understood the idea that the only day he had to live was the present one. To number our days correctly doesn't require the ability to count very high. If you can count to "one" then you have correctly numbered your days.
Are there any relationships in your life needing to be mended? Are there any loved ones to whom you need to say "I love you"? Are there any matters you need to put right with God? If you answered "Yes" to any of these questions (or the thousand others that would be applicable to your life), I challenge you to take action immediately. Sign off the World Wide Web and do it. You can surf later (maybe), but you may not have the opportunity to put these other matters right.
Number your days correctly. You have exactly one day to live.