Joseph Murphy who wrote the Power of your subconscious mind had a miraculous healing by a simple prayer. Here's his story.

He had a skin malignancy that was not responding to medical care, it was getting progressively worse. A clergyman explained to him the inner meaning of the Psalm 139, his understanding was that his subconscious mind fashioned and molded all his organs from an invisible cell.

Mr Joseph discovered that his subconscious mind made his body, therefore it could fashion and heal it. He believed that he had to give it the perfect idea of health to experience healing.

This resulted in him engaging a routine prayer 3x a day. Within 3 months his skin was whole and perfect..
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His prayer was this:
My body and all its organs were created by the infinite intelligence in my subconscious mind.

It knows how to heal me, its wisdom fashioned all my organs, tissues, muscles and bones.

This infinite hesling presence within me is now transforming every atom within my being making me whole and perfect now.

I give thanks for the healing I know is taking place now.

Wonderful are the works of the creative intelligence within me.
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He concluded that all he did was give life-giving patterns to his subconscious mind.

There's a lesson I've learned from this story. If God is the creator, which He is, of this temple which we call a body, then His Spirit knows exactly how to restore it and get it working in optimum health. Our role is just like thr proohets' role: they spoke and the Spirit of God which functions as their Helper, went forth to accomplish the mission.

In the same manner, it is our role to speak which is prayer, and to let it go in rest, trusting that God is doing His part.

It’s easier to experience what you have reasoned in your heart as true. The truth is that God in His infinite intelligence created us therefore He can restore us once we have sufficient faith(justification).