The most important thing is that it teaches you what is and isn't important in life, or at least it did for me. I used to panic when a server or website died at work. For me, now, it's nothing. Of course, it's still urgent and I fix but it actually gets done faster as I'm not stressing about it. The most important thing for me is having healthy and happy children. Work is now a means to that end.
A big thank you for sharing that insight here.