Czernobog and Bielebog Options

First off, to anyone who has read American Gods by Neil Gaiman, these names are familiar. They are Slavic deities and their tale is appropriate as Midsummer draws near. I found this on the net whilst looking for information on these two as my group does live steel Oak King/Holly King battles on the solstices (I get to be Czernobog)

In the beginning, there were no earth and no people, only the primordial sea. Bielobog flew over the face of the waters in the shape of a swan and was lonely. Longing for someone to keep him company, he noticed his shadow, Chernobog and rejoiced.

"Let us make land" said Bielobog.

"Let us," said Chernobog, but where will we get the dirt?"

"There is dirt under the water, go down and get some," answered Bielobog, but before you can reach it, you must say 'With Bielobog's power and mine'."

The devil dived into the water, but said "With My Power", instead of what he was instructed to say. Twice he dived down and neither time did he reach the bottom. Finally, the third time he said "With Bielobog's Power and Mine" and he reached the dirt. Scraping some up with his nails, he brought it to the surface but hid a grain of dirt in his mouth in order to have his own land.

God then took the dirt from him and scattered it upon the water. The dirt became dry land and began to grow. Of course, the land in Chernobog's mouth also began to grow and his mouth began to swell. Chernobog was forced to spit and spit to rid himself of all the earth and where he spit, mountains were formed.

Angered that he was cheated out of his own land, he waited for Bielobog to fall asleep. As soon as the god was sleeping peacefully, Czernobog lifted him up to throw him in the water. In each direction he went, but the land had grown so much, he could not reach the ocean. When Bielobog awoke, Czernobog said "Look how much the land has grown, we should bless it."

..And Bielobog said slyly, "I blessed it last night, in all four directions, when you tried to throw me in the water."

This greatly angered Czernobog who stormed off to get away from Bielobog once and for all. In the meantime, the earth would not stop growing. This made Bielobog very nervous as the Heavens could no longer cover it all, so he sent an expedition to ask Czernobog how to make it stop.

Czernobog had since created a goat. When the expedition saw the great god Czernobog riding astride a goat, they couldn't stop laughing. This angered the god and he refused to speak to them. Bielobog then created a bee, and sent the bee to spy on Czernobog.

The bee quietly alit upon Czernobog's shoulder and waited. Soon, she heard him say to the goat "What a stupid god! He doesn't even know that all he has to do is take a stick, make a cross to the four directions and say 'That is enough earth'. Instead he wonders what to do."

Hearing this, the bee buzzed off in excitement. Knowing that he'd been heard, Czernobog yelled after the bee, "Whoever sent you, Let him eat your excrement!".

The bee went directly to Bielobog and said "He said All you need to do is make a cross to the four directions and say 'That is enough earth.' And to me he said 'let whomever sent you eat your excrement'.

So god stopped the earth from growing and than said to the bee "Then forever after, let there be no excrement sweeter than yours."

Do you know what any of those gods repesent.If we knew we could extract occult meaning from it like isis and osirus myth.

Bielebog literally means "The White God" and Czernobog "The Black God." As far as extracting occult meaning, Czernobog is Bielebog's shadow, or dark half. The story is about duality. Note how Bielebog, when wanting to create the Earth, sends his shadow to gather the soil. Same when he wants to bless the land. Bielebog without Czernobog is unbalanced.
From a pyschological point of view, Czernobog dives into subconscious. For the Shaman, he is the shadow soul.