Faith in the power of prayer … is … faith in miraculous power; and faith in miracles is … the essence of faith in general. … [F]with is nothing else than confidence in the reality of the subjective in opposition to the limitations or laws of Nature and reason, … The specific object of faith, therefore, is miracle; … To faith nothing is impossible, and miracle only gives actuality to this omnipotence of faith[.]

The Essence of Christianity