Whoever eats My flesh and drinks My blood remains in Me and I in him.

 “How can this man give us [his] flesh to eat?” 

 "Jesus said to them, “Amen, amen, I say to you, unless you eat the flesh of the Son of Man and drink his blood, you do not have life within you.  Whoever eats  my flesh and drinks my blood has eternal life, and I will raise him on the last day." 

"For my flesh is true food, and my blood is true drink.  Whoever eats my flesh and drinks my blood remains in me and I in him."  (John 6: 52 -  56 NABRE)

The Eucharist is the medicine of immortality.  (St Ignatius of Antioch)

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