This was taken from the Watchtower 1975, August 15. Paragraphs 12&13
12 Resources and abilities that we might possess should be used to advance Kingdom interests, rather than letting them serve as hindrances in the race for life. For instance, if you have an extra house, could you sell it and use the money to enter the pioneer service instead of working hard to maintain both houses? If you have retired or will soon retire from secular work, does your heart move you to use the increased freedom for a fuller share in the Kingdom preaching? Even though your resources may be limited, how can they be used best in serving Jehovah?
13 The objective should be to make material things serve us as needed, and not for us to become enslaved to them. If we truly appreciate spiritual values and put our relationship with Jehovah above all else, he will help us to keep running the race with endurance and to gain the prize. The world with its desires of the flesh and the desires of the eyes and the showy display of one’s means of life “is passing away . . . but he that does the will of God remains forever.”—1 John 2:15-17.
Very thoughtful isn't it?