Dreams.

I had all sorts of strange dreams, too many to describe. But today, I had a particularly bizarre one. I remember having a chain in my mouth (a regular one, the kind some people wear around their neck), and I wanted to take it out, but it turned out that it was threaded through my tongue (I wonder if such a piercing exists?) and fastened. In the end, I managed to unfasten it, then pulled on one end, and it turned out that the last link of the chain on the other side was larger than the rest and wouldn't fit through the hole in my tongue. In a hurry, I put the chain back in my mouth to try and pull it out from the other side, but then I remembered that it wasn't fastened, and therefore it could fall into my esophagus, so I started spitting it out quickly, and then I woke up suddenly.
so, think about what it means