Christianity Cannot Exist Without the Eucharist

In anticipation for the the release of my NEW BOOK ON THE EUCHARIST, this week I'm asking: what is the connection between the Eucharist and the New Covenant, and why do we need the Eucharist to make sense of Christianity? Order my book here: https://www.amazon.com/Eucharist-Real... https://shop.catholic.com/the-euchari...