He later assisted Culhwch in his search for Olwen. Culhwch had been arranged to marry his own stepsister, but he refused. Angry, his stepomother cursed him to marry no one but Olwen. Olwen's father, Ysbaddaden, was a vicious monster that would die if he was separated from his daughter. After many trials and tribulations, Culwch succeeded and gained Ysbaddaden's powers and life.
Mabon is one of the eight solar holidays or sabbatss of Neopaganism. It is celebrated on the autumn equinox, in the northern hemisphere circa September 21 and in the southern hemisphere circa March 21.
Also called Harvest Home, this holiday is a ritual of thanksgiving for the fruits of the earth and a recognition of the need to share them to secure the blessings of the Goddess and God during the winter months.
See also Wheel of the Year.