According to this, it isn't just the stakes that are ritual elements.

The sand at the bottom is also part of it...

And above all, this water.

These three together make up one single element.

Oho!

Well, this getting more and more interesting.

That'll be why there's no fish.

So what's it do?

Hrm...

There's something about the formation of minerals and dust...

Let's see, what else...

Pretty vague, huh.

Yes, there are a lot of scribbles...

The handwriting's frustratingly rushed.

Hm.

...Whoa!

It's like a party of elements in here! As in, chemical elements.

How does this stuff stay together?

This is amazing!

It's more like a storehouse for raw materials than sand.

That's all in just one grain. Awesome!