According to Lewis, experience alone cannot answer the question of whether miracles occur or not. This is because the things we claim to be miracles are things that must come to our senses. This brings us to the definition of miracles which means any interference with nature by a supernatural power. When we talk of our senses, then this means what we can either see, touch, smell, hear or taste, but our senses are not infallible. The miracle we see can, at times, be an illusion in that we cannot give evidence of what we saw. This kind of illusion in our eyes makes us feel like we have seen a miracle. This first-hand experience cannot bring the occurrence of miracles to reality because what we sense depends on the philosophy that we bring to our experience.
Examining the evidence is a way of proving that the evidence occurred rather than basing the truth on experience, which is preferred by history to be the best supporting truth. This can be so if we think such miracles are possible for there to be a convincing power of their evidence. The philosophical question that we need to possess in our minds should be whether such miracles are possible or probable. This should guide one even before we start looking for evidence for the occurrence of a miracle. Such a philosophical question is what enables us to believe in Christian miracles in the bible hose that we need not even question their credibility. Therefore, whether miracles occur or not should be answered by the philosophical question that should guide us in perceiving such a miracle other than the experience of seeing it.