Do you believe in Santa? I do. Who else sets out all those gifts under the Christmas tree? Don't say "your parents" because what if you celebrate Christmas, but aren't rich? I know some people like that.
Santa is an old man who goes into your home and if your naughty or nice he gives you presents. Think about this, nice could mean acceptance and naughty could men rejection.
[I made something like this before but whateves]