Chapter 2 Documents: What understanding of the afterlife does the epic suggest?

From reading "The Epic of Gilgamesh" there is a part in the story where Enkidu tells Gilgamesh about the dream he had about the afterlife. In his dream, he stood before a scary creature. The creature then took him to the palace of Irkalla where the Queen of Darkness was. While there, he saw all the kings who ruled the earth. Each and every one of them became servants. From how Enkidu described his dream of the afterlife, I can tell that he and the people were afraid of death. The way he described death is similar to the way people describe hell. After, Enkidu goes on his quest for immortality. By Enkidu wanting immortality, that proves that he was afraid of the afterlife. He didnt want to be mortal because he knew that someday he'd have to die. I think that from this epic, it is understood that the afterlife is feared.