After Enkidu dies, Gilgamesh sets forth to meet Utnapishtim, a man who had been granted immortality. Gilgamesh fears death and decides to seek eternal life by approaching the dangerous mountains that guard the sun, meeting scorpion men (the start of the inmost cave).
I must approach the inmost cave.
Gilgamesh's ordeal includes crossing the ten leagues of darkness in order to meet a goddess, Siduri. Siduri then informs Gilgamesh that in order to get to Utnapishtim, he must cross the lethal waters with Urshanabi, Utnapishtim's ferryman.
Crossing these leagues of darkness is a bit exhausting.
After challenging and failing Utnapishtim's test (The Road of Trials), Gilgamesh learns that in order to avoid death, he must apprehend a secret plant that grants youthfulness deep underwater which is his potential reward, his "seizing the sword."
I've found it! The secret plant! Long live me!
After acquiring the secret plant that grants rejuvenation, Gilgamesh is ready to return to Uruk. He then decides to take a bath; allowing for a snake to steal the plant while he is bathing.
Haha, here's my chance to retrieve this plant.
This bath is great.
I am a failure!
Once Gilgamesh realized that the plant was gone, the climax of the story occurs. After weeping after the plant, he acknowledges his mortality and realizes that death is inevitable. This is his "resurrection."
I will soon perish.
Gilgamesh will return "with the elixir" to his ordinary world as a changed person who has learned many things in his journeys. After acknowledging his mortality, Gilgamesh strives to be a great king who looks forward to starting a new life.