The story of Gilgamesh is about the relationship of Gilgamesh and his good friend Enkidu. Gilgamesh was a powerful man, so the gods tried to create Enkidu to be his equal, but they create a relationship and together go on a quest. They go and defeat Humbaba in the Cedar Mountain. Later on the quest, they go and defeat the Bull of Heaven that the goddess Ishtar has sent to destroy Gilgamesh.
Enkidu, as the play goes on, gets sick and dies. Gilgamesh is devastated by his death, and does not want this to happen to him, so he goes on a quest for immortality, but fails because he is told that the gods created life along with death. The theme of this story is that death is inevitable in human life, which Gilgamesh learns.