I had this dream sometime early last week.
My boyfriend and I were visiting my mom at her house. I went into the garage to use the microwave (Yes, that is where she keeps it.), and her cat Monkey came into the garage from outside through the cat door. I reached down and petted her head absent-mindedly. Her fur was soft and silky; she looked exactly as she would have looked and felt exactly as she would have felt. This is when I suddenly realized that the cat had passed away a month ago, and that it was her spirit that I was looking at. She went back outside and I followed her as far as I could, in shock at seeing her. I came back inside and told my mom and boyfriend what had happened, then I woke up.