Xana

The Xana is a character found in Asturian mythology. Always female, she is a creature of extraordinary beauty believed to live in fountains, rivers, waterfalls or forested regions with pure water. Often they enter traveler's dreams through an erotic manifestation and cause them harm through blood spilling. Those who have a pure soul and hear the xana's song will be filled with a sense of peace and love. Those whose souls are not pure will feel they are being suffocated and may be driven to suicide