This an excerpt from a book I'm reading, called "Don't Waste Your Life" by John Piper.
"I will tell you what tragedy is. I will show you how to waste your life. Consider this story from the February 1998 Reader's Digest: A couple 'took early retirement from their jobs in the Northeast five years ago when he was 59 and she was 51. Now they live in Punta Gorda, Florida, where they cruise on their 30-foot trawler, play softball, and collect shells.' At first when I read it I thought it might be a joke. A spoof on the American Dream. But it wasn't. Tragically, this was the dream: Come to the end of your life----your one and only, precious, God-given life----and let the last great work of your life, before you give an account to your Creator, be this: playing softball and collecting shells. Picture them before Christ at the great day of judgement: "Look, Lord. See my shells." That is a tragedy. And people today are spending billions of dollars to persuade you to embrace that tragic dream. Over against that, I put my protest: Don't buy it. Don't waste your life."
There's not anything I can really add to that. It speaks for itself.
This is, so far, one of the most convicting books I have read. If you haven't read it, you really should. You won't regret it.