The human soul is the absolute center of healing

Gen 2:4-7

This is the history of the heavens and the earth when they were created, in the day that the LORD God made the earth and the heavens,

5 before any plant of the field was in the earth and before any herb of the field had grown. For the LORD God had not caused it to rain on the earth, and there was no man to till the ground;

6 but a mist went up from the earth and watered the whole face of the ground.

7 And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living being.

God breathed into our nostrils the BREATH OF LIFE (that's the soul) and we became a living being (as opposed to every other being on the earth).