Why do you think when life is ending we appreciate the simple things?

It's a natural occurrence. It's much like losing something you never really paid attention to. After you lose it, that's the only time that you appreciate it.

It's the same with saying, "you'll never miss the water until it's gone" Everyday could be a mediocre at times, but if we are deprived of the things that we used to do everday, that is then we appreciate the things that we used to take for granted. You see, our happiness does not depend on our success or accomplishment. Happiness is felt during our journey.. through the ups and downs..

Probably because we know someone close to us is about to die. Subconciously we can't help but think about the times we've spent together with that person and the memories and experiences we've shared. That's why it makes you appreciate those good times because you know deep within your heart that you'll never be able to do things together with that person anymore. You're aware that you'll be missing them more than you can imagine and that it would never feel the same if you do the things you used to do together with someone elses.

I am not sure it works like that for everyone. But if you know life is ending one thing is for sure: there is no need to rush anymore, no need to finish things, there is less pressure from the outside world. It's not interesting anymore what society wants, the government wants etc since your time is over soon. So you have time to enjoy.