channlluv, I'm from Southeast Asia originally. This discussion reminded me of the 'Mooncake' festival or mid-autumn festival celebrated in many countries in that region. By the way, it's about to take place soon. The stories behind it are not about why seasons change but it is a celebration that takes place when the moon is supposed to be at its brightest and most beautiful, and some of the myths seek to explain this. The other main story explains the tradition of marking the festival by exchanging 'mooncakes'. Hanging up and carrying lanterns also form part of the celebrations.

These are the two stories that I recall very vaguely from childhood about this festival, which to be honest, was not of significance to us but an excuse for a celebration. The first relates to a moon goddess of fairy. All I can remember is my grandmother telling me stories about this but I don't recall the stories themselves. The second one was about people wanting to overthrow the ruler of China and hiding messages in cakes during the moon festival. That was about as much as I could remember so I did a Google search to check my memories. Here are some links that will give you more information if this is of interest:

http://www.journeymalaysia.com/MCUL_midautumn.htm (There are also useful Singaporean sites but the stories related in this one are closer to my own memories)
http://chinesefood.about.com/od/moon...onfestival.htm
http://en.wikipedia.org/wiki/Mid-Autumn_Festival