The story goes, when I was very small, I asked my dad if Santa Claus was real. He looked down at me and said, very seriously, "Santa comes to those who believe." I gazed back, eyes wide, and responded slowly, earnestly..."I believe."
I like that story, the little girl choosing what to believe. Of course, I probably made that choice for highly materialistic reasons, but nonetheless. I like to think that I chose magic.