Maybe it's wrong when we remember breakthroughs to our own being as something that occurs in discrete, extraordinary moments. Maybe falling in love, the piercing knowledge that we ourselves will someday die, and the love of snow are in reality not some sudden events; maybe they were always present. Maybe they never completely vanish, either.
When my mother didn't come back I realized that any moment could be the last. Nothing in life should simply be a passage from one place to another. Each walk should be taken as if it is the only thing you have left. You can demand something like this of yourself as an unattainable ideal. After that, you have to remind yourself about it every time you're sloppy about something. For me that means 250 times a day.