There is a very, very large difference between Real Presence and Transubstantiaion. Real Presence embraces the Mystery of Faith, Transubstantiation is a Thomistic and Aristotelian philosophical explanation that became dogma in the 11th century. I’ve never said I believe in Transubstantiation. Moreover, the Eastern churches (incl. the Orthodox) don’t embrace the concept, either (ask your local Orthodox priest about transubstantiation, metousiosis, metabole, metastoicheiosis, and metarrhythmisis (ah, the problem of all the Early Church Fathers who wrote in Greek, Latin, and 2-3 other languages)). It seems folly to me to use rationalism and Aristotelian philosophy to try to explain a mystery. Anyway, the Church made it for over 1000 years without having to explain it. The West being the West just had to try, tho.
It’s the body and blood of Christ. Period. It’s not a metaphor. Sacraments are the reality and point to the reality of God’s grace and Christ’s presence. They become, by the power of the Holy Spirit, outward and visible signs of an inward and spiritual grace. That, my friend, is a miracle. And you can’t use rationalism or Thomistic/Aristotelian philosophy to “explain” a miracle. Nor can you use science. I’m sorry, but the dogma of transubstantiation explains the mystery too neatly. Mysteries are not explainable.
And you best be careful with symbol, my friend. Sacraments are real AND symbols; it’s a both/and, not an either/or - they point toward the realities of Christ, and they ARE Christ! If you get caught running a stop sign and tell the cop, “Ah, it’s just a symbol of the law, it’s not the law itself”, I suspect you will still get a ticket.
Perhaps two.
O+