19th Century
St. Peter Julian Eymard
Modern Period
St. Peter Julian Eymard (1811 – 1868), Priest known as the "Apostle of the Eucharist". Wikipedia
"We must remember that the Holy Eucharist is Jesus Christ, past, present and future; that the Holy Eucharist is the highest development of the Incarnation and the mortal life of the Savior; that Jesus Christ therein gives us all graces. […] Happy the soul who knows how to find Jesus in the Eucharist, and in the Eucharist all things else! "
My Eucharistic Day
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Why this quote matters
Simple identification: Eucharist IS Jesus Christ.
Source citation: My Eucharistic Day (meditations).