Corpus Christi Sunday is one of my fave solemnities as it's one of the rare occasions that people would likely hear they're actually receiving the Body, blood, Soul & Divinity of Jesus in the appearance of bread -not merely a "symbol."
The sense of the miracle of humanity itself should be always more vivid to us than any marvels of power, intellect, art, or civilization. The mere man on two legs, as such, should be felt as something more heartbreaking than any music and more startling than any caricature. Death is more tragic even than death by starvation. Having a nose is more comic even than having a Norman nose.
G. K. Chesterton, Orthodoxy, http://www.gutenberg.org/ebooks/16769
The Catholic way is wedded to common sense. With respect to credulity Catholic common sense says, “Chances are the water stain is just a water stain and not a miraculous apparition. Chances are the cold is just a cold and not a manifestation of demonic power.” With respect to dogmatic skepticism, Catholic common sense says, “If a person with nothing to gain and a lot to lose reports seeing a miracle, odds are they are at least being honest. If that honest person’s report of a miracle has solid evidence backing it, then the sensible thing to do is praise God for a miracle.” So when the apostles and 500 witnesses report seeing the Risen Christ and live lives or suffering and martyrdom for it, the most reasonable (and faithful) thing to do is acknowledge that the thing happened. After all, nothing in science or the Catholic faith really makes it impossible since God, under carefully controlled laboratory conditions can do whatever he likes.
Mark P. Shea, Credulity and Skepticism, full text http://www.mark-shea.com/credskep.html