As the nights draw in through October, you can feel the chill in the air, there is an eerie, unsettling atmosphere at dusk in the woods, there are strange shapes and noises and you know that Samhain -the pagan religious festival from an ancient Celtic spiritual tradition - is upon us, the ancient nature spirit god (Gwynn ap Nudd) and the ghosts and demons of Annwn walk the earth to usher in the dark half of the year, the spirit Otherworld is close at this time of year... fantasy, myth.