I found this story attributed to Fr. Jerry Orbos. (via and via)
There is a story about a rich father who takes his son on a trip to the countryside to show how poor some people are. The child is quiet through the whole trip. On their way home, the father asks his son what he learned from the trip, to which the son responds: “Dad, I saw that we have one dog, and they have four. We have a nice swimming pool, but they have a nice creek. We have fancy lights and lanterns, but they have countless stars at night. We have high walls for protection, but they have friends. Thanks Dad for showing me how poor we are.”
With the comment appended to the story: “Poor indeed are those who do not let go of their comfort zones and let God into their lives.”
But to go a level deeper, those who try to let God into their lives and are poor in spirit recognize the simple truth that all is gift and nothing belongs to them.