Invisible friend

I have often heard the theory that when children say that they have invisible friends, those friends are really ghosts, spirit guides, or angels. When the child gets older and is taught that invisible things aren't real and don't exist, they forget about their invisible friends.

I thought that I didn't have any invisible friends as a child but today I remembered something: I had an imaginary older brother. (My only "real" siblings are a younger sister and a younger brother.) When I was 10 I was feeling kind of bummed out and thought that having an older brother would solve a lot of my problems. So I created one. His name was Michael and he was 14. He liked me a lot and I him. I even made a life-size painting of him and taped it to the door of my room. It stayed there for a couple of years. Around 12 I suppose I more or less forgot about Michael. But I remembered him today. I think he counts as an invisible friend, maybe even an angel.