Yes, it's an 'active' role-play moment of using the wine as a 'metaphor' for his blood being shed for our sins and a cracker is the 'metaphor' for his body being shed for us to overcome sin and death, we live eternally with Jesus in the spirit.  Same as when a non christian goes through initiation of confessing self as a born sinner and seeks forgiveness for sins and accepts Jesus Christ as his personal Lord and Savior. Dipped in water, the 'metaphor' for sins being washed clean in the name of Father God, the one true living God Yahweh, the son, Jesus Christ, and the Holy Spirit. Same as when a believer is further baptized in fire, 'speaking in tongues' is the metaphor for being inhabited by the Holy Spirit. baptism by 'fire'. They are all very powerful 'active/live' metaphors for the believer.