Definitions for "Mabon"
Sabbat celebrated in early fall; completion of harvest started at Lughnasgh. Day and night are equal once more as the God prepares to travel toward renewal and rebirth from the Goddess.
The Sabat held on the Autumn Equinox (around Sept. 21) to celebrate the end of harvest.
A Wiccan festival celebrated on or around September 21st, the Autumnal Equinox, which marks the second harvest. Autumn transmutes into winter. A time of thanks and reflection.