When I was young, there was no sense of any kind of spiritual worship or activity outside the Christian churches, at least not where I lived which was predominantly Methodist. This time of year was the Harvest Festival. I had never heard of 'equinox' or Mabon.
The idea of worshipping a male deity at harvest time and the time of equal day and night doesn't fit with how my personal beliefs work but it is widely accepted by many Wiccans:
http://sorita.co.uk/what-or-rather-who-is-mabon
On the equator there is no such distinction between seasons - every day is equal in length to the night and sunrise and sunset are always at 6am and 6pm. Like our ancestors, we who live away from the equator in the northern hemisphere, notice our environment changing with the shortening days and, like them, regardless of whether this is southern Italy or Finland, it is what is happening where we are that informs how we see the equinox. Our nomadic cousins across Europe would be packing up and heading down to the winter grazing grounds at this time whereas here in the UK, our farming community are harvesting, storing and selling. Everyone is busy, busy, busy including most of the animals . . .
Many animals, are naturally hungry at this time of year, it is a survival mechanism which ensures that they eat, Eat, EAT to store up enough fat reserves to last them through the winter. Bears are at their most dangerous because of this natural hunger, from now until they hibernate. So now, even though there is plenty of natural food around, I still put out lots and lots of different bird foods to help the new fledglings feed up before winter. An offering if you will.
Here, where I am, it is noticeably cooler, all growth has slowed, harvests are mostly in, the apples are still ripening but just about ready for picking and it is a time of grateful thanks for the bounty of Mother Earth. As a woman in her late 40s, this time resonates with me. The chicks have flown the nest, the harvest is in, I'm not quite a crone yet but it is only a matter of time so the autumn equinox is about the transition between abundance and the storing up of wisdom and support to tide over the winter months.
For me, this is a time of deep gratitude for abundance all around and storing and preserving what will feed and support the next generation (not just literal food but wisdom that has been hard earned this year). It is a time to think about the next phase. Our Celtic (to use a general term) ancestors saw the dusk or end of each day as the transition to the new day which started in the darkness of the womb (of night) and was born at dawn. This extends to the phases of the year and so the Autumn equinox is that kind of pivotal point where the old year is not yet ended and the new year not yet begun.
So what is happening where you are?
What does this time of balance mean to you?