What is aos si?

The Aos Sí (pronounced "ees shee") are supernatural beings or fairies in Irish and Scottish folklore. They are believed to inhabit the fairy mounds and other natural landmarks such as caves, lakes, and hills. The Aos Sí are said to be descended from the Tuatha Dé Danann, a mythical race of ancient gods and goddesses in Celtic mythology.

The Aos Sí are known to be mischievous and sometimes malevolent, but they can also be benevolent and helpful to those who show them respect. They are said to possess powers of shape-shifting, invisibility, and glamour, which they use to enchant and trick humans.

Offerings of food and drink are often left out for the Aos Sí in order to appease them and receive their blessings. It is also believed that iron and other protective charms can ward off the Aos Sí, as they are said to be repelled by the metal.

The Aos Sí play a prominent role in Irish and Scottish folklore, and stories about them have been passed down through generations as cautionary tales about the dangers of angering these powerful beings.