St. John Chrysostom answered this long ago:
" What, do you not see the
holy vessels so thoroughly cleansed all over, so resplendent? Our
souls ought to be purer than they, more
holy, more brilliant. And why so? Because those vessels are made so for our sakes. They partake not of Him that is in them, they perceive Him not. But we do —yes, verily. Now then, you would not choose to make use of a soiled vessel, and do you approach with a soiled
soul? Observe the vast inconsistency of the thing. At the other times you come not, no, not though often you are clean; but at
Easter, however flagrant an act you may have committed, you come. Oh! The force of custom and of prejudice! In vain is the daily Sacrifice, in vain do we stand before the Altar; there is no one to partake. These things I am saying, not to induce you to partake any how, but that you should render yourselves worthy to partake. Are you not worthy of the Sacrifice, nor of the participation? If so, then neither are you of the
prayer. You hear the herald, standing, and saying, As many as are in penitence, all
pray. As many as do not partake, are in penitence. If you are one of those that are in penitence, you ought not to partake; for he that partakes not, is one of those that are in penitence. Why then does he say, Depart, you that are not qualified to
pray, while you have the effrontery to stand still? But no, you are not of that number, you are of the number of those who are qualified to partake, and yet art indifferent about it, and regardest the matter as nothing."
https://www.newadvent.org/fathers/230103.htm