What Does Eating Wine and Bread Symbolize in Christianity?

While verses of 5:110 through 5:119 address the major principles behind Christianity, 112-115 seem to be least noticed in discussions, as far as I have seen.   Here are the verses and their translation from www.Quran.com 

5:111

Sahih International

And [remember] when I inspired to the disciples, "Believe in Me and in My messenger Jesus." They said, "We have believed, so bear witness that indeed we are Muslims [in submission to Allah ]."

5:112

Sahih International

[And remember] when the disciples said, "O Jesus, Son of Mary, can your Lord send down to us a table [spread with food] from the heaven? [Jesus] said," Fear Allah , if you should be believers."

5:113

Sahih International

They said, "We wish to eat from it and let our hearts be reassured and know that you have been truthful to us and be among its witnesses."

5:114

Said Jesus, the son of Mary, "O Allah , our Lord, send down to us a table [spread with food] from the heaven to be for us a festival for the first of us and the last of us and a sign from You. And provide for us, and You are the best of providers."

5:115  

Allah said, "Indeed, I will sent it down to you, but whoever disbelieves afterwards from among you - then indeed will I punish him with a punishment by which I have not punished anyone among the worlds."

It appears to me that this is the true story behind the famous “Last Dinner” of Jesus in Christian faith as celebrated by eating bread and wine.  It is also the subject of "Last Dinner" paintings where Jesus is eating with his disciples at a table. Quran account is clearly in contrast to the Bible’s story:

Jesus Christ, at His last meal with His disciples, commanded His friends and followers to remember Him in a specific way. Although He had earlier warned them of His approaching death (John:12:32-33)

"...When He had given thanks, He broke [the bread] and said, 'Take, eat; this is My body which is broken for you; do this in remembrance of Me.' In the same manner He also took the cup [of wine] after supper, saying, 'This cup is the new covenant in My blood. This do, as often as you drink it, in remembrance of Me'" (1 Corinthians:11:24-25).

According to the above lines of the Bible the main idea behind the tradition of eating bread and wine is to be reminded of Jesus and one’s dedication to him.

From Quranic point of view firstly, if God forbids intoxicants, as discussed in a previous post, it does not make sense to recommend people to drink wine as his reminder. Secondly, if Jesus is God’s messenger he should be inviting people to eat something in order to remember God not himself. 

Christianity’s view is understandably different however.  Nevertheless, one would argue if wine has ever been associated with a spiritual feeling at all.  To judge a tradition we should evaluate its effect. That is to say, one can form an idea about the truth behind a religious tradition or ritual by wondering about its spiritual impact.  

While it is true that the intention of doing a ritual can greatly influence its outcome, we are to constantly examine the spiritual benefits of anything we do in the name of religion in order to keep the virtue of the original rituals introduced by any religion.  

In other words, if religious traditions and rituals deviates from their original meaning and purpose they will become ineffective and useless to us.  That is why believers of all faith, including Muslims, should question the true meaning and purpose of any tradition or practice suggested by their religion.  Otherwise, a true religion, over time, may be converted to meaningless and baseless superstitions that may do more harm than good to human as it may be the case for certain religions today.