A collection of quotes from A Course in Miracles about how and why the body is healed by miracles.
"Thus is the body healed by miracles BECAUSE they show the mind MADE sickness, and employed the body to be victim, or EFFECT of what it made."
"The BODY is healed BECAUSE YOU CAME WITHOUT IT and joined the Mind in which all healing rests."
"Healing is the one ability that everyone CAN develop, and MUST develop, if he is to BE healed. Healing IS the Holy Spirit's form of communication, and the ONLY one He knows."
"The acceptance of sickness as a decision of the mind, for a purpose for which it would use the body, is the basis of healing. And this is so for healing in all forms. A patient decides that this is so, and he recovers. If he decides against recovery, he will not be healed."
"The body cannot heal, because it cannot MAKE ITSELF SICK. It NEEDS no healing. Its health or sickness depends ENTIRELY on how the mind perceives it, and the purpose that the mind would use it FOR."
"It frequently happens that an individual asks for physical healing, because he is fearful OF BODILY HARM. However, at the same time, if he WERE healed physically, the threat to his thought-system would be considerably MORE fearful to him than its physical EXPRESSION. In this case, he is not really asking for RELEASE from fear, but for the removal of a symptom WHICH HE HAS SELECTED.
"It will be healed of all the sickly wishes that it tried to authorize the body to obey ... Now is the body healed because the source of sickness has been opened to relief."
"With THIS as purpose IS the body healed. It is NOT used to witness to the dream of separation and disease. Nor is it idly blamed for what it did not do. It serves to help the HEALING of God's Son, and, for THIS purpose, it cannot BE sick. It will not join a purpose not your own, and you have chosen that it NOT be sick. All miracles are based upon this choice, and GIVEN you the instant it is made. No forms of sickness are immune, because the choice cannot be MADE in terms of form. The choice of SICKNESS seems to be a form, yet it is one, as is its opposite. And YOU are sick or well, accordingly."
"The removal of blocks, then, is the only way to guarantee help and healing. Help and healing are the normal expressions of a mind which is working THROUGH the body but not in it. If the mind believes the body is its goal, it will distort its perception OF the body, and by blocking its own extension BEYOND it, will INDUCE illness by FOSTERING SEPARATION. Perceiving the body AS A SEPARATE ENTITY cannot but foster illness, because it is not true. A medium of communication WILL lose its usefulness if it is used for anything else."
"Learning must lead beyond the body to the re-establishment of the power of the mind IN it. This can be accomplished only if the mind EXTENDS to other minds, and does not ARREST ITSELF in its extension. The arrest of the mind's extension is the cause of all illness, because ONLY EXTENSION IS THE MIND'S FUNCTION. Block this, and you have blocked health because you have BLOCKED THE MIND'S JOY."
"If the mind can heal the body, but the body cannot heal the mind, then the mind must be STRONGER. Every miracle demonstrates this."
"His dreams are happy and his rest secure, his safety certain and his body healed, because he sleeps and wakens with the truth before him always."
"Love must be extended. Purity is not confined. It is the nature of the innocent to be forever uncontained, without a barrier or limitation. Thus is purity not of the body. Nor can it be found where limitation is. The body can be healed by its effects, which are as limitless as is itself."
"The guiltless mind cannot suffer. Being sane, the mind heals the body because it has been healed. The sane mind cannot conceive of illness because it cannot conceive of attacking anyone or anything. I said before that illness is a form of magic. It might be better to say that it is a form of magical solution."
"Perhaps you do not realize that this removes the limits you had placed upon the body by the purposes you gave to it. As these are laid aside, the strength the body has will always be enough to serve all truly useful purposes. The body's health is fully guaranteed, because it is not limited by time, by weather or fatigue, by food and drink, or any laws you made it serve before. You need do nothing now to make it well, for sickness has become impossible."
"Always in sickness does the Son of God attempt to make himself his cause, and not allow himself to be his Father's Son."
"Sins are beyond forgiveness just BECAUSE they would entail effects which CANNOT be undone and overlooked entirely. In their UNDOING lies the proof that they were merely errors. LET yourself be healed, that you may be forgiving, offering salvation to your brother AND yourself. A broken body shows the mind has NOT been healed. A miracle of healing proves that separation is WITHOUT effect."
"Allegiance to the denial of God is the ego's religion. The god of sickness obviously demands the denial of health, because health is in direct opposition to its own survival. But consider what this means to YOU. UNLESS you are sick you cannot keep the gods you made, for only in sickness could you possibly WANT them. Blasphemy, then, is SELF-destructive, not God destructive. It means that you are willing NOT to know yourself, IN ORDER to be sick."
"The power of witness COMES from your belief. And everything you say or do or think but testifies to what you teach to him. Your body can be means to teach that it has never suffered pain because of him. And in its healing can it offer him mute testimony to his innocence. It is THIS testimony that can speak with power greater than a thousand tongues. For here is his forgiveness PROVED to him. A miracle can offer nothing LESS to him than it has given unto you. So does your (physical) healing show your mind is healed, and has forgiven what he did NOT do. And so is HE convinced his innocence was never lost, and healed along with you."
"Thus does the miracle undo all things the world attests can never BE undone. And hopelessness and death MUST disappear before the ancient clarion call of life. This call has power FAR beyond the weak and miserable cry of death and guilt."
"Health is the witness unto health. As long as it is unattested, it remains without conviction. Only when DEMONSTRATED has it BEEN proved, and MUST compel belief. No-one is healed through double messages. If you wish ONLY to be healed, you heal. Your single PURPOSE makes this possible."
"The central lesson is always this; that what you use the body for it will become to you. Use it for sin or for attack, which is the same as sin, and you will see it as sinful. Because it is sinful it is weak, and being weak, it suffers and it dies. Use it to bring the Word of God to those who have it not, and the body becomes holy. Because it is holy it cannot be sick, nor can it die. When its usefulness is done it is laid by, and that is all. The mind makes this decision, as it makes all decisions that are responsible for the body's condition. Yet the teacher of God does not make this decision alone. To do that would be to give the body another purpose from the one that keeps it holy. God's Voice will tell him when he has fulfilled his role, just as It tells him what his function is. He does not suffer either in going or remaining. Sickness is now impossible to him."
"If you let your mind harbor attack thoughts, yield to judgement or make plans against uncertainties to come, you have again misplaced yourself, and made a bodily identity which will attack the body, for the mind is sick."
"If to love oneself is to HEAL oneself, those who are sick do NOT love themselves. Therefore, they are asking for the love that would heal them, but which they are DENYING TO THEMSELVES. If they knew the truth about themselves, they could not be sick."
And NOT miracles.... "All material means which man accepts as remedies for bodily ills are simply restatements of magic principles. It was the first level of the error to believe that the body created its own illness. Thereafter, it is a second mis-step to attempt to heal it through non-creative agents." (Miracles are thought creations, creative agents).