I've talked to two people recently who've set me thinking about how short life REALLY is - one lost his father on Christmas day - his father was 'fit as a fiddle' but was diagnosed as having cancer 3 weeks before Christmas and then died on Christmas day. The other was a man who's wife had been murdered - stabbed by a burgler.
Talking to these people brings home to me how short and fragile life is, and how we all need to get on with it and do the things we want and make peace with those we need to.