Read it through once

Did they consider Joan valueless? Far from it. They valued her as the fruitful earth values the sun—they fully believed she could produce the crop, but that it was in their line of business, not hers, to take it off. They had a deep and superstitious reverence for her as being endowed with a mysterious supernatural something that was able to do a mighty thing which they were powerless to do—blow the breath of life and valor into the dead corpses of cowed armies and turn them into heroes.