If you don't own the latest thing, it won't go out of date.
If you don't own much, you won't have much to lose.
If you own next to nothing, you won't worry about ending up with nothing.
If you own less than you want, you will still have more than you need.
If you spend less money on things, you can spend more time on you.
If you own less, you will value it more.
If you own only what you can carry, you will carry less baggage around with you.
Travel light.