Question of the Day!

I used to have a recurring nightmares, such as the one where I'm trying to lead a group of people through mechanically sealed tunnels that malfunctioned, and we're trying to get out before the poison gas comes and kills us--that one usually starts with me falling through a colored carpet floor--but nowadays, it's more a recurring setting. Like the island castle with a super-fun (that's the only way I can describe it) basement. I have had multiple dreams in this setting, but the dream is almost always different. It is strange. Anyone else experience this sort of thing?