So this is Arawn, Lord of the Hunt and of the Underworld, which is called Annwn in welsh mythology and where the souls of the dead reside. Arawn as lord of the underworld was closely associated with the English Hern the Hunter and the wild hunt, especially around Yule where he heralds the darkest, longest night before the sun king is reborn. In Welsh folklore, Arawn rides with his white, red-eared hounds (the Hounds of Annwn) through the skies in winter, the dying season, collecting the souls of the dead to return them to Annwn. For me he is death and the journey to rebirth, bringing great change with him as he sweeps into and out of our lives.