Read it through once

True healthy doubt means, in Browning, that the spiritual nature is sufficiently quickened not to submit to the conclusions of the insulated intellect. It WILL reach out beyond them, and assert itself, whatever be the resistance offered by the intellect. Mere doubt, without any resistance from the intuitive, non-discursive side of our nature, is the dry-rot of the soul. The spiritual functions are “smothered in surmise”. Faith is not a matter of blind belief, of slavish assent and acceptance, as many no-faith people seem to regard it. It is what Wordsworth calls it, “a passionate intuition”, and springs out of quickened and refined sentiment, out of inborn instincts which are as cultivable as are any other elements of our complex nature, and which, too, may be blunted beyond a consciousness of their possession. And when one in this latter state denies the reality of faith, he is not unlike one born blind denying the reality of sight.