A magnificent Mystery of The Church. Without it, how does one worthily receive communion?
One doesn't. Communion is turned into a "Jesus Pill" that cures everything...
As one Eastern Orthodox confessor said: if you don't need to confess, then you don't need the Eucharist! Perhaps the Vatican ought to copy that message.
But, then, again, that's probably too much to ask. They have reduced the Eucharist to a cookie for all practical purposes—everyone get one for just attending the Mass. It reminds me of that "I voted" sticker every gets for voting...