Each system of mythology has a specific family tree of deities and a clearly defined hierarchy. Why is this important?

This is important because it resembles the human in all the gods.

Explanation:

There is allways one before the other, such as in greek mythology it shows that the earth (Gaia) Was the mother of the titans which gave birth to children of their own. Then it decended to the Greek Gods we know of and the cycle continues.

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