The Blackfeet (Niitsitopi) Creation Myth

The Blackfeet or rather the Niitsitopi, have a creation myth that features a character that is known as Napi, the Old Man. It was Old Man who came to the plains who made things the way they were.. THis does not mean that they worshiped Old Man as a god. He was just the one who put things together.
The story goes that Old Man came from the south. He was always creating new things and putting them in their proper place. One instance is when bighorn (elk I believe) used to live in the dessert. Absurd you think? Well so did the Old Man. He moved them to the mountains saying that they suited them better.
As I said before he also created new things. He made mountains, grass even new animals. Afterward he even made people out of clay. Then once he had done that, he taught them how to hunt, build and take care of themselves.
However, not every other deity liked Old Man's fiddling. They often got into fights with him but Old Man's good nature won them over.
He was also a bit of a playful fellow. ONe day after a regular day of creation and arranging, he stood on the top of a mountain and figured that he had done a pretty good job with the place. He decided to have some fun and go sliding down the mountain he was on. The marks that he made on the mountain are still present today. As a result, that mountain is known by Niitsitopi as Old Man's Sliding Ground. IN other words his playground I suppose.
As soon as he finished everythin, the tale says that he went west and that he would return someday to find things very different.

Thoughts on Duality

The Yin-yang. A symbol common to oriental culture. It shows the unity of opposites. How one thing cannot exist without the other. Two opposing forces complete each other, need each other to exist. Yet despite their need of each other, are still opposed to the other.
Forever opposed yet forever united.
One could think of it as a controlled chaos of a sort. A conflicting dance between two people, yet while there is this chaos, there is a lively party and on the whole, an orderliness.
This description may be a bit confusing but if you look at it from the right perspective it makes sense.
Speaking of perspectives, I think its time for me to offer one of mine.
The Yin-yang operates on a theory of balance. In pure nature this works perfectly as nature always tries to maintain a cyclical balance. For everything there is a season, a time to live, a time to die.
As human beings though, we have a tendency to knock things out of whack. There are those of us with some balance of these forces, there are some of us with complete balance and there are those of us who are completely unbalanced. For sentience gives rise to the possibility of evil. Which in turn gives rise to people capable of doing evil purely for the sake of evil. Maybe the converse is true as well but that is a debate for another time.
Because where humans are concerned, the Yin-yang is not a fixed drawing. It ebbs and flows, stays static and chaotic. For very few people does the Yin-yang stay the same but still those people do exist.
In conclusion, in human nature duality is both fixed and flowing. It can be still as a statue or flowing like the aurora.