There are basic human needs for survival: food, clothing, and dwelling. A commoner would be content if these needs are reasonably fulfilled. Any other material thing is a luxury. An item is considered a luxury if a person is not emotionally affected by its absence. As time passes and technology advances resulting in the availability of more and more sensory objects, human desire increases, and the scope of needs widens. Gradually a luxury becomes a need. It is material progress and is perceived as growth and prosperity. Think about the reverse effort. Can a person who has gained more than enough material progress convert a need (other than the basic needs in a reasonable measure) into a luxury? Is it possible and can s/he be successful? The answer is yes. It would require, on his or her part, increasing control over sense organs and the mind. It is the beginning of the spiritual journey.