“Sometimes a meal is just a meal, and eating with others is simply eating with others. More often than not, though, it’s not. Once or twice a semester at least, I will stop discussion of the story or play under consideration to intone (and I invariably intone in bold): whenever people eat or drink together, it’s communion.For some reasons, this is often met with a slightly scandalized look,communion having for many readers one and only one meaning. While that meaning is very important, it is not the only one. Nor, for that matter, does Christianity have a lock on the practice. Nearly every religion has some liturgical or social ritual involving the coming together of the faithful to share sustenance. ”
The paragraph is from How to read literature like a professor. I just don't know what the true meaning of communion in this sentence:communion having for many readers one and only one meaning. Here, “the only one meaning”,I wonder whether it refers to “a ceremony in christian church ” or “the state of sharing thoughts and feelings”.