In Irish folklore Due to the oral nature of Irish folklore, the exact origins of the fairies are not well defined. There are enough stories to support two possible origins. The fairies could either be fallen angels or the descendants of the Tuatha Dé Danann; in the latter case, this is equivalent with aos sí. In the former case, it is said that the fairies are angels who have fallen from heaven, but whose sins were not great enough to warrant hell.
In Irish folklore Due to the oral nature of Irish folklore, the exact origins of the fairies are not well defined. There are :enough stories to support two possible origins. The fairies could either be fallen angels or the descendants of the Tuatha Dé Danann; in the latter case, this is equivalent with aos sí. In the former case, it is said that the fairies are angels who have fallen from heaven, but whose sins were not great enough to warrant hell.