Fylgjia, in Norse mythology, may or not be an omen of impending death. A Fulgia is an omen of death, depending on its gender. If it appears as a male form, then it is an omen of death. However, if it appears as a female form, then it is a protect; a protect for people or clans.
A Fylgjia is supernatural being or a creature, or someone who accompanies a person in connection to their fate and fortune. Usually, a Fylgjur appears in the form of an animal. Commonly, it appears during sleep, but sagas relate that they could appear while a person is awake as well.