What do you think is the main idea of the memoir?

A memoir is a slice of life. You can document anything, including the death of a loved one, the birth or adoption of a child, summer camp, a religious awakening, becoming an adult, journeying to a different country, or adjusting to the new home, just to name a few ideas. If you lived it, you can write it.

Explanation:

the answer should be:

the intervention of the supernatural gives gilgamesh hope that he will defeat humbaba.