This is one of the earliest human works of literature - ever.

Rather than dissect, explain, or interpret anything. I will give you a snippet of the wikipedia summary. Keep in mind that this epic poem was written in about 2100 BC, and talks about ancient times.

Read it and let it sink in. [Note: Bold emphasis is mine]

The first half of the story discusses Gilgamesh, king of Uruk, and Enkidu, a wild man created by the gods to stop Gilgamesh from oppressing the people of Uruk. After Enkidu becomes civilized through sexual initiation with a prostitute, he travels to Uruk, where he challenges Gilgamesh to a test of strength. Gilgamesh wins the contest; nonetheless, the two become friends. Together, they make a six-day journey to the legendary Cedar Forest, where they plan to slay the Guardian, Humbaba the Terrible, and cut down the sacred Cedar.[2] The goddess Ishtar sends the Bull of Heaven to punish Gilgamesh for spurning her advances. Gilgamesh and Enkidu kill the Bull of Heaven after which the gods decide to sentence Enkidu to death and kill him.

These life lessons go back to BEFORE antiquity. Things have always been thus: the struggles, love, romance, competition, brotherhood, injustice, and "the gods" who always seem to punish the human heroes.

Enjoy the journey folks. We only get one shot at this.