Scotland is full of legends of the selkie, an enchanted being that lives most of her life as a seal and comes to shore every so often to shed her seal skin and to mate with a man. If you find her skin and hide it from her, she will be unable to change out of her human form. However, the water is where she finds true happiness, and even without her skin, a selkie will always find her way back to the sea.
The words are joyous nonsense syllables.