"There is a ghost in the hallway"

My daughter is almost 4 and somewhere between level 1 and 2. She is verbal...but not conversational. A lot of what she says seems like her own language. She can convey wants/needs and sometimes can answer basic questions, and is pretty good at repeating things. This morning we were sitting on the couch watching a Disney show and completely out of nowhere, she says, "There is a ghost in the hallway." Just nonchalantly. No positive or negative emotion. We had not been watching anything about ghosts or anything spooky.

The funny thing is my husband and I both have felt like there is some kind of neutral presence in our house, and we usually sense it in the hallway, but we have never discussed it in front of her.

I'm just curious if any other parents of autistic kiddos have had similar experiences...