I don’t recall ever having cleaned my jargon, but you will probably recognize this word as it has been imported into English.
23 For I received from the Lord what I also delivered to you, that the Lord Jesus on the night when he was betrayed took bread, 24 and when he had given thanks, he broke it, and said, “This is my body which is for you. Do this in remembrance of me.” 25 In the same way also the cup, after supper, saying, “This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me.” 26 For as often as you eat this bread and drink the cup, you proclaim the Lord’s death until he comes.(I Cor. 11:24)
The term translated “remembrance” here is ANAMNESIS: The “remembrance” of God’s saving deeds in history in the liturgical action of the Church, which inspires thanksgiving and praise. Every Eucharistic Prayer contains an anamnesis or memorial in which the Church calls to mind the Passion, Resurrection, and glorious return of Christ Jesus (CCC)
We most often see this word as “amnesia” or the inability to remember. The ritural is intended to reverse/oppose/undo the forgettery. It is an enacted device to make us present to that which we are to remember. So more than being just a “symbolic” act, there is a recreation that is intended to make us physically, emotionally, and spiritually present.
The Passover is the anamnesis in which the Eucharist is founded. During passover, a real lamb is slain, and people physically eat the lamb, as a way to prevent amnesia. It is not a symbolic lamb, and it is not just some “reminder” that the Exodus occurred, but an enactment, with specific roles, and very specific liturgical instruction.