"Living within one's income" is highly commendable; but unless supported by the understanding of what constitutes true being, living within a specified financial income is likely to be attended by a sense of anxiety and frustration. Christian Science has brought to humanity the absolute knowledge of God and man that reveals an income as unlimited as is one's present receptivity to spiritual ideas, and this understanding heals specific evidences of insufficiency and lack.
Man is in truth the image and likeness of God, the beloved of the Father, an heir of the heavenly kingdom. He individually reflects right activity and possesses through reflection eternal joy and satisfaction. Man is not a struggling mortal, making efforts, frequently futile, to obtain things outside of himself; but he is the compound idea of divine Mind and includes the right idea of home, supply, happiness, which mortals hope and strive for. This is the true fact of man's being, as revealed in Christian Science.
In the proportion that mortals perceive' the true origin of being they cease to look to matter for their support. They turn instead to Mind and find that spiritual ideas alone are substance and supply. Matter is always limitation, whether it seems to be scarce or abundant; but spiritual ideas are infinite, ever available, and illumine consciousness with a sense of God's illimitable goodness. The income of spiritual ideas is inexhaustible, emanating from the one divine Mind. It cannot be outlined by human control, diminished by taxation, or fluctuate in value.