The prophet of healthy-mindedness pulls herself up by her bootstraps, while the sick soul sees that she needs an unearned gift -- from above (what I think Christians call grace) or from below, from her own fickle neurochemistry.
Would you say that like James's sick soul you'd find the idea that "natural evil [is] no such stumbling-block and terror" because in the end it doesn't really count, and is "swallowed up in supernatural good," a good basis for religious experience? Versus the healthy-minded view in which evil could be avoided, or reinterpreted out of existence, by acts of will, and the supernatural is limited to the power of "mind-cure"?