Why do we sometimes have weird dreams?
I know that many dreams are caused by memories, thoughts, and experiences. But, sometimes we have very weird dreams. Recently, I had a VERY odd dream: I had a dream that Johnny Depp was at my home to visit. At first, the dream was normal. But then (I am slightly embarrassed by this), he picked me up like a small child (I am 37), put me on his shoulders, and started to ride me on his shoulders (like you would do with a child) and then he went through a door and I hit my head on the doorjam. What could have caused such a silly and weird dream?