Possessions, for practical purpose and intent, are everything that we actually & legally, physically & mentally possess. It can be money, house, car, career, knowledge, or solution to problems.
How we treat our possessions determines how easy for us to part ways with them.
Whatever we own, we protect. The benefits stay within our boundaries. We have a hard time to let them go, even at deathbed. We see others in a critical manner.
Whatever we believe we are stewards of, we become responsible and accountable for. We tend to share, even give, them to benefit others.