My husband and I were on a 3 day vacation over 300 miles from home. We can't go away any longer than that because our cat is paranoid. She came to us as an abandoned tiny kitten and is afraid of everyone except us. We can't take her to a kennel, she would probably die of fright. So, we leave her in the house with food and water and lots of windows to perch in and watch birds. She is only slightly miffed when we come home.
On the last night of our trip, we both had strange dreams about cats. My dream was of a cat who was wanting to get out of the house. I was afraid that it would get hurt if it did because we live in a rural area where there are owls, foxes and bobcats. It kept trying to run out the door and scratch on the door and I was afraid for it to get out. My husband's dream was about a bunch of kittens in a barn who would scurry out of sight whenever he would come in. He was worried that they had no food and spent his dream looking for food for the kittens. Had we watched a movie about cats recently, read a book? Deciding that it was just a weird coincidence we forgot all about the dreams.
When we got home, we discovered that our cat had accidentally closed herself into the bedroom and was 3 days without food or liter box. She could drink from the toilet. Her food and litter box hadn't been touched so she was trapped the whole time. She must have been so desperate after the second day and was sending us "help me" "let me out" "I'm starving" vibes that we picked up in our sleep. I felt so bad for her.
I always know when she wants inside also. She doesn't meow. I just open the door and she's there. Or I tell my husband to let the cat in, that she's waiting. He doesn't question it anymore and just opens the door.