"Economy" sounds so theoretical to most people, but it isn't theoretical at all when we think of it in terms of earning a living, providing for a family, and thinking about the future.
What does "economy" mean to most of us? Is it that good is limited—that there isn't enough good to go around? Since we know that God is good, would that mean that there isn't enough of God to go around? Such a concept of economy couldn't come from God, for God is infinite Mind, and in infinite Mind are infinite—spiritual—ideas. Limited good is not a spiritual idea. What, then, would limitation be based on?
In some cases, perhaps selfishness, perhaps extravagance, perhaps fear. In many cases simply not being aware of the universality of good. If we are inclined to accept a limited sense of supply, we could also accept a limited sense of happiness, a limited sense of harmony, or a limited sense of health. Indeed, if we are thinking in material terms, limitation becomes pervasive; it seeps into all aspects of life, making us vulnerable to rumors and predictions concerning every area of human experience. When we turn from matter to Spirit, however, our lives change. We become aware of and experience the flow of good coming forth from God. Christian Science explains that healings of lack recorded in the Bible occurred because of the recognition that God's supply is unlimited. As we read in the Bible, "My God shall supply all your need according to his riches in glory by Christ Jesus." Phil. 4:19.