Happy Ends, Sad Ends, To do list

So a 20 minute lifetime. I wanted to come up with an example of something that I did or experienced that would fit this, but I can't quite figure out what constitutes a lifetime. Some people fade out so early and some so late. I have a list of things I have to do before I float on, and I wondered if that list was something that would really complete my life or if I could do without it. You know how people say, "I can't die without doing. . . something. ." or "If only this would happen, I could die happy." As if we only have to complete one purpose and life could be over. Take a big moment in someone's life. The Heisman Trophy winner this year from Alabama. I feel like he might have lived a lifetime in that presentation where they summed up his life and he gave his speech. I think he could have died right there, being wholly satisfied or climaxing in victory over the struggles and work that he relived in video clips and interviews. If that's a lifetime, I think I've got one.
So the night my boyfriend and I started dating, I remember we were sitting in a playground set cubby thing sometime in the evening about to address our "friendship" and the complicated high school drama circling us and two other people. Good times. I don't really talk to people when I have a crush, and I had had a crush on this guy for a long time, so I basically let three years of repressed feelings and soul pour out in molten crazy lava all over the guy. I had no real sense of time at the time, but after this interview, I think I found out we had been at the park for a total of one hour, and before talking, we had walked around for awhile, so it might have been a 45 minute lifetime. Anyway, I think reliving a lot of emotion and experience while simultaneously enduring a sense of risk and danger qualifies for a lifetime. And it did end really happily. I could have died right then. And perhaps I did and woke up the next day a new person with a new boyfriend. Eh?
I guess some lifetime's don't end so happy, but I like to think the lifetimes we discuss end happy. Do you have those moments where you just feel older than you are? You're just wearied and worried by something going on? Those moments can feel like a lifetime. I went to a funeral once for a 3 or 4 year old little girl, my friend's sister, but I had never met the little girl before. She was dressed in a pink princess dress, but I couldn't look her in the face. I got there early because my dad and my sister did the music, so I sat with my friend in the pew; and I don't think we said anything. There really wasn't anything to say, just to think and ponder about life and death. Awareness of one's own mortality and age. I remember feeling really old.
These things I've done, lots of things I've done, aren't necessarily on my bucket list, but I think, when looking back, they really make me think about my current life. My dad told me once, when I had a terrible, not embarrassing so much but a soul crushing kind of experience, that those kind of things weren't things we should dwell on, but things we should carry with us, so when we experience the same thing or a similar thing, we'll know what to do. So when we have sad and happy 20 minute lifetimes, I feel like we might carry those around on a chain and pull them out to relive again or use for future reference. Memories are good.