Worlds are like water... they overlap and wash onto each other, and sometimes the tide recedes, sometimes it comes in. In on world, everything you ever dreamed is quite real. Everything ANYONE ever dreamed is quite real. And here is where the Faerie can be seen. Most have to hide when they're in our world, forced into shelters of mortal flesh, but if you know how to look... you might get glimpses. But normally only a Faerie can lead you into the Wondering.