The Devil's Final Assault is underway and it is the most subtle of all heresies, beyond even Modernism. The attack on Doctrine takes place through the attack on Discipline and Rubrics. Father Corapi speaks with authority on the Holy Eucharist, "the Source, Center, and Summit of the Church's life" and the Ministerial Priesthood, without which there can be no Eucharist. From the series "The Blood that Saves".