I'm standing in a cave with water flowing in and out. The tide is coming in but I'm not panicking, in fact, I'm enjoying myself. I'm playing with a mysterious animal. I think it's an eel, but I can't see anything except the torso because the animal wants to be petted. It's dark and slimy and squirming and keeps slipping out of my arms, which can barely wrap around the torso.
There is no direct light, just what little comes in from the outside. I can't see outside the cave except the brief moments between when the waves are entering the cave or receding.
I'm giggling at the creature.
I wake up.