A fairy is a type of mythical being or legendary creature in European folklore, a form of spirit, often described as metaphysical, supernatural, or preternatural. Myths and stories about fairies do not have a single origin, but are rather a collection of folk beliefs from disparate sources.
The fairies are a secretive people who are blamed by the local Irish for many things which they cannot explain. As a result the fairies like to be left alone and it is considered bad luck to disturb a fairy bower or a Lone Bush. But, they do love children and if you treat them well they may just grant you a wish at their fairy tree or Lone Bush.