I have noticed in the “search terms” box a number of people wanting the “meaning” of rats in dreams, etc. Rats in the Bible discusses the few times they are mentioned and the possible problem they caused in Samuel.
When they are in dreams I think you need to check what they are doing in the dream. Most people think of the black rat. They cause fear and loathing in many people and that is what is projected into dreams.
In Samuel, God uses the “rats” and the problems they “carry” to bring judgement on the Philistines. Being a science teacher, I need to mention the parasites, the rats carry, cause a lot of damage.
Being fair to the rats, we do need to remember that they would have been in the sheet that Peter dreamed about in Acts.