The bread and the wine symbolizes the body and the blood of Jesus Christ for our redemption.
And he took bread, and gave thanks, and brake it, and gave unto them, saying, This is my body which is given for you: this do in remembrance of me. Likewise also the cup after supper, saying, This cup is the new testament in my blood, which is shed for you.
Luke 22:19-20 KJV
The verse above shows us the physical demonstration of the spiritual act. The Bread broken and the wine described what the prophet Isaiah was talking about
But he was wounded for our transgressions, he was bruised for our iniquities: the chastisement of our peace was upon him; and with his stripes we are healed.
Isaiah 53:5 KJV
https://bible.com/bible/1/isa.53.5.KJV
The breaking of bread and drinking of wine as practice by most or some churches is a significant practice that reaffirms our believe in the redemption work that was done on the cross