Life. You think it's about accumulating things. Knowledge, experience, etc. It's also about losing things, letting things go.
I think food. I think about things I used to eat and drink, and have given up over the years: alcohol, sugar, fried food, processed food, meat, soft drinks, fast food, desserts, gluten...
I think about the things I have enthusiastically embraced: quinoa, nuts, guacamole! Can a person live on guacamole? I think I will try!