Aos Sí

The name ''aos sí'' means "folk of the ''sí''"; these are the burial mounds in which they are said to dwell, which are seen as portals to an Otherworld. Such abodes are referred to in English as 'shee', 'fairy mounds', 'elf mounds' or 'hollow hills'. The ''aos sí'' interact with humans and the human world. They are variously said to be the ancestors, the spirits of nature, or goddesses and gods.
In modern Irish, they are also called ''daoine sí''; in Scottish Gaelic ''daoine sìth'' ('folk of the fairy mounds'). Provided by Wikipedia
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