Many places in Scripture Christ says that He is the vine or He is the door or another metaphor to describe Who He is and our relationship with Him. There is only one place that He says this thing is Me... and that is the bread and wine offered for our salvation. Considering our God created all that is by the power of His Word... I'll take it on faith that Our Lord can change the reality of the Eucharist by the power of His. And I'll also take it on faith that when we repeat His Words down through history as He commanded, the mystery continues as He promised.
I take it on faith that I receive the benefit of Jesus’ broken body and shed blood in communion, but not that I am eating literal flesh and drinking literal blood...you can believe what you want.