When you go to West Edmonton Mall in Edmonton, there are many attractions. When I was a teenager, I went on the roller coaster that goes upside down and twists, while rushing forward at high speeds.

When I reflect on this teenage experience, I remember it as fun but a little tense. Then about six years ago I went on the roller coaster again because my daughters, who were teenagers at the time, went on some rides and somehow, I went on the roller coaster with my wife. When I went the second time it felt quite different. There are times in your life when you say to yourself, regarding someth...