That`s the beauty of magic. It can never be fully explained - Or should never be..
Although I have written stuff where worlds exist that have magic and developed my own `rules` on how they work, I tend to keep it a completely secret to the viewer so the mystery of magic is constant.
That said, even I sometimes don`t know the full intricacies of what magic can do in my own fantasies. that`s the beauty of it.
Magic has to remain mysterious to work, or it`s no longer magic, just some science.
Remember Starwars and when Lucas stupidly revealed the Force to be a biological organism?
