Picture By Tasnu Arakun Mabon! Most people know this day as the Fall or Autumn Equinox, and it is marked as the first day of Fall on most calendars (at least in the Northern hemisphere). The date this lands on can vary, but it's usually some time between September 20 through September 23 (it was the 23rd this year). It's the second day of the year where day and night is the same length. After Mabon passes, nights will start getting longer while the days get shorter.
This is the second of the harvest festivals. It's also considered a Witch's Thanksgiving. This is usually the wonderful time of year where you start seeing apple cider popping up all over (yum, one of my favorites). So, the main crops of this harvest are nuts, apples, and grapes. Apple pie and wine? Who'd pass that up as part of a feast? I'm most familiar with the U.S. Thanksgiving, so when I think of Mabon, that's what I think of (just a couple months earlier).
All those good foods associated with the harvest at this time of year are of course symbols. What do we get when we stuff all those foods together in a horn? A cornucopia, of course! You also have acorns, gourds, pumpkins, and sunflowers (my daughter's sunflower that she started from a seed finally bloomed on Mabon this year) that represent this sabbat.
Of course I've only touched the tip of the iceberg. These websites might be a good place for you to start if you'd like to learn more about Mabon: Mabon, How to Celebrate Mabon, the Autumn Equinox, and Mabon - Overview by Christina.
Further Reading Suggestions:
Madden, Kristin. Mabon: Celebrating the Autumn Equinox. St. Paul: Llewellyn Publications, 2002.
I hope you found this tidbit interesting! If you would like me to touch on a particular topic that fits in this series, please don't hesitate to contact me with suggestions.