The following passage from "if I defend myself I am attacked", speaks of "confusing" or merging mind and body, a level confusion, or a mis-identification of what you are. Seeing what’s in the mind as if it’s in the body, projected onto the body makes the body sick. ("Sickness is anger taken out upon the body." "All sickness comes from confusing the levels.")
Merging mind and body as if one thing results in sickness because it depicts mind as at the effect of the body/world. Believing that you, as mind, are the body, results in sickness. The body is an illusion, mind is real. Mind is cause, body is effect.
Confusing mind with body puts you at the effect of the body, believing the body is now causal. This is the belief in magic, that the effect is causing you, because of your confusion about which is which. Not believing you are the body heals the body. Not projecting mind stuff onto the body heals the body. The body is nothing and causes nothing. Believing otherwise is mental illness.
"The body needs NO healing. But the mind that thinks it IS a body is sick indeed! And it is here that Christ sets forth the remedy. His PURPOSE folds the body in His light, and fills it with the holiness that shines from HIM. And nothing that the body says or does but makes HIM manifest."
Basically, the mind is distinct from the body. If the mind is having an ego spaz, the mind is sick, and it will spaz all over the body, affecting the body negatively. It will project its spaz onto the body and see the spaz as if its in the body, confusing itself with the body due to level confusion/perception reversal.
The mind’s power/force will then distort the body to try to make it take on the shape/form of the mental illness. This skews the body, warps it, disfigures it, producing symptoms of distress. The body is practically an ‘innocent victim’ in this because it HAS NO WILL of its own and is completely passive to the raging mind’s self harm. Mind is just shitting all over it, destroying it senselessly. It is clearly therefore the mind that needs to be healed.
When the mind is healed and healthy it does not project shit onto the body or distort it or mangle it. It doesn’t try to make the body act out the "plans" derived from insane perceptions, and does not impose its tyrrany onto the body form. The body automatically is freed from these mental distortions and is instead healed by the mind. "The mind, being sane, HEALS THE BODY."!
"The "self " that needs protection is not real. The body, valueless and hardly worth the least defence, NEED MERELY BE PERCEIVED AS QUITE APART FROM YOU, and it becomes a **healthy**, serviceable instrument through which the mind can operate until its usefulness is over. Who would want to keep it when its usefulness is done?"
"Defend the body and you have attacked your mind. For you have seen in it the faults, the weaknesses, the limits and the lacks from which you think the body must be saved. YOU WILL NOT SEE THE MIND AS SEPARATE FROM BODILY CONDITIONS. And you will impose upon the body all the pain that comes from ***the conception of the mind as limited and fragile***, and apart from other minds and separate from its Source."
"These are the thoughts in need of healing, and **the body will respond with health** when they have been corrected and replaced with truth. This is the body's only real defence. Yet is this where you look for its defence? You offer it protection of a kind from which it gains no benefit at all, but merely adds to your distress of mind. You do not heal, but merely take away the hope of healing, for you fail to see where hope must lie if it be meaningful."
"Enslavement of the body to the plans the unhealed mind sets up to save itself must make the body sick. It is not free to be a means of helping in a plan which far exceeds its own protection, and which needs its service for a little while. In this capacity **is health assured**. For everything the mind employs for this will function flawlessly, and with the strength that has been given it and **cannot fail*