What we refuse to admit in the soul - or even in the mentality, we have not heard thus all error is rejected. If therefore, thine eye be single - to truth - thy whole body shall be full of light.
Mentalities that blend with the consciousness of Spirit, know that they are the light of the world, and will let their light so shine, that the Spirit will be manifest or apparent. No ill can befall one who sees no ill. They who fulfil the royal law, resist not evil, for they see no power in what is called evil; goodness being infinite, they know naught but goodness.
The principle of mathematics is not revealed by the error in the problem; we do not perceive the principle until we turn from the error. God is not revealed by the errors of His children.
We do not perceive and manifest God, until we turn from error to God. The law of love is not manifest in us, while we are recognising the hate manifest in others. All bitter fruit is the product of false seeing and believing, or misinterpretation.
Spirit perceives its own truth; and to the pure all is pure. Hence it is impossible to obtain knowledge from error, or by error, or even from error, in effect, or by effect.
The practitioner of the science of Infinite Spirit or truth has the mistakes of the whole world to erase or correct when healing.
The science of God is absolute mathematics. they who wish may demonstrate and prove it. A true practitioner will administer truth for all beliefs of imperfection. To heal is to manifest truth in the body. "He that raised up Christ from the dead shall also quicken your bodies because of His spirit that dwelleth in you." Truth is the remedy, and the only remedy, for error, and will not compromise with it. All may heal, who will administer truth - free from personal will and desire, by thinking, speaking and acting it. Healing by the Spirit of Truth, is casting out error by the power of God, and is not a kingdom divided against itself. When the Spirit of Truth is manifest in the patient, God is manifest.
Truth is equally good for all, the more we give of this remedy, the more we are conscious of it. In healing do not in thought hold your patient as the body, nor use personal will; have no desire for special effects, otherwise it will not be a science treatment. When we speak from Spirit and claim all goodness for another, our measure is according to Spirit, and is just and right.
Truthful statements, made like unto God, destroy erroneous belief, which is unlike God.
(Truth's Practice - Final lesson)