IF  AN  UNBELIEVER  PROTESTED that he had never had a spiritual experience in his entire life, whether uttered in pride, mockingly, or simply stated as a fact, I would say that that certainly explains why said person is not too enamored of Christianity. 

Christianity without healings and miracles as everyday occurrences is rather insipid and superfluous at best. Amazing — simply jaw dropping — things happen to those who spend their time close to God. Miracles become divinely natural and healings are simply expected — and fulfilled.