What happens during transubstantiation?

What happens during transubstantiation? I have heard of it but what happens?

Wine and bread are transformed into my body and blood – LITERALLY. I don’t mean “literally” like a teenage valley girl would mean literally. I mean literally.

So what does this mean? It means that you are eating flesh and drinking blood. But that’s not all – you are eating those things while taking part in a ritual with other people doing the same thing.

Take a long, hard look at yourself.