You put on the table perhaps the most disputed theological issue between Catholics and Protestants. I decline to get drawn into a bottomless swamp of disputation over the nature of the Catholic Eucharist.
Yes, it is possibly the deepest question, after the proposition that we are saved by faith not by works, lest any man boast of earned merit. The Jailer asked ‘What must I do to be saved?’ What did Paul answer? It is that simple, yet so hard for some to let God be God in them.
Pax vobiscum