Harbinger Sein

Within the Wheel of Seasons of the Eldest Faith a Harbinger Sein refers to the Firstborn "heralding" a coming season.
Usually the Harbinger of a season is a Firstborn associated with the continuing of the natural cycle and the passing of Seasons.

Among the most commonly celebrated Wheel of Season the Harbinger Seins are:
  • ꭆhī-Ráhīt the Firstborn of Rodents as the Harbinger-sein of Summer