I go to church. I do not take communion. I do not believe in the divinity of Christ. I do believe that there is much to value in his teachings.
The Bible is full of stories. In my not-so-humble opinion these stories are often taken far too literally. This is the case even if the authors hoped that they would be taken literally. Turning water into wine is a case in point, as is the concept that wine is the blood of Christ. Mind you, conservative Christians do not agree with that idea. They want to believe in these concepts in the most literal way possible.
I am not sure how the story of turning water into wine got started. I don't mean by this that I don't understand that it is a story in the Bible. What I mean is that I am not sure how that story made it into the Bible. Multiple explanations are plausible. I wouldn't even rule out ancient aliens or time travel. I would tend to go with explanations that are more prosiac. This could include mass hypnosis, or simply the willingness of believers to not object to the obvious fact that their wine is in fact water. A way of being gracious to their host and teacher. Also, a way of proclaimng mind over matter.
If I chose to label something as wine, who is to say that I am wrong?
If I say that the sun travels along a certain path in the sky, who is to say that idea is wrong?
It is rather a trick of language. The sun does indeed seem to travel a certain path through the sky. So there is a certain poetic truth to saying so. That this perception is the result of the rotation of the earth may be a scientifically correct statement, but that does not, or at least should not, take away from the poetic truth regarding the "path" that it takes.
That poetic truth can facilitate how we think about the sun in our everyday lives. Architects can plan the orientation of the homes and buildings that they design by taking into account the "path" of the sun. We can all speak about the sun rising in the east and setting in the west and use this idea to navigate in the wilderness. Much of language is that way. A way of understanding our world so that we may act upon our "knowledge". We really don't need to be killing each other over the confusion that this acting upon partial knowledge some times causes.