A spirit, or a royal? Someone told me it was a god. Maybe it's different in different islands. Er, kingdoms. [He corrects himself, considering Earth seems to have only a very few very large islands that are better termed continents, after all. Maybe it's those anyway, but maybe it's a kingdom thing.]

Dunno about the trees either. Maybe it just looks like the part of Earth most of them are from? Maybe they have lots of trees. I do know they say it's a holiday for winter, when it's dark, and that's why there's all the lights.