"Christians can truly enjoy luxuries because they do not depend on them for contentment." - A rough quote from Malcolm Smith
It makes me sick to think of how I used to covet so much of the worlds luxuries and technology before I was reunited with God. I get sick because I think of how I would look forward to every Christmas for the sheer benefit of gift-getting and when those gifts had been proven empty of any water for the spirit, I looked forward to the next luxury only to have the same thing happen. I would covet peoples possesions, feeling sorry for myself because I didn't have what they had and I thought that if I just had what they had, I would be content. But when I did get it, I would realize how quickly I grew bored and uninterested with it.
Christ brings us contentment with with much or with little because we no longer seek life in things, but we have found life in Him. As unbelievers, we lived as locusts, moving from thing to thing, sucking whatever we could get out of one thing and moving onto the next, never finding our fill.
You can have the priciest home, coolest car, craziest technology, but you will invevitably become bored and uninterested with each. Life is more than these things.
That being said, we Christians do not overcome this by sheer self-denial. Not at all! You know how I was able to quit smoking? It wasn't by effort, I swear to you. It was because I didn't need the cigarettes anymore! I had all I could ever want or hope for in Christ. That isn't to condemn or shame anyone who does smoke. God works different things into various parts of the Body. That is just an example of how Christians are able to live with or without.
We Christians have the greatest treasure of all in these jars of clay.