I often don’t like John Calvin, but I do like this view of the Eucharist. I don’t see the need for some kind of physical description, but I do believe that through carrying out this common ritual as commanded by Jesus we share in community.
I like the weekly celebration as part of the service. Our pastor normally connects the celebration with the topic of his sermon and makes it a combination of traditional elements and up-to-the-moment connections. I recently experienced this with someone who read the liturgy word for word, and I must say that the difference was striking to me. I think there are ways to make traditions both familiar, so people feel able to participate and also new, so that participating is an uplifting challenge.
In any case, check out Bob’s article.