Do we really own anything? Is true ownership possible at all? Take a look at your money and possessions and ask yourself, are they really mine? These things are here today and gone tomorrow. Nothing lasts forever. Even our lives are finite - as if temporarily borrowed from the universe.
If true ownership is impossible, then it seems that pride in one's possessions is misplaced. It also seems that material attachment can lead to loss and despair. So, remind yourself daily that nothing lasts forever. Everything we possess, including our own lives, will eventually return to the universe.