Annual Aetherlight Reunion Day is a day where old forums people who've left the forums come back again for the fun of it. On that day, we'll catch up with each other, ask people how's life, and reminisce with each other. It's really just a way of making sure our fallen friends have a way of finding the light again (the Aether-LIGHT!).
If you wanna go back in-game, then we can do that too. But the main thing is just to never forget our Aetherlight community. Those who have left for good can come back on that day. It doesn't have to be everyday, but just that one day.
TIP: When you put this event in your calendar, put it on Annual Repeat, and don't forget to put your username and password in the "notes" section just in case you forget.