Seeking for Eternal Life

In Table X, I began to see Gilgamesh as a more simple person. When he got to the sea, when the tavern keeper, Veiled Siduri, saw him, she thought he was a wild person, she didn't think he was the powerful ruler of the city of Uruk. Also, when he was with the boatman Urshanabi, he also thought of him as a wild man, not as the ruler he was. Both, of them asked him: "Your face is bitten by hinger or by sorrow. Why do you look like the one who has undergone a journey? Why do you look like the one who grieves? Why do you wear the skin of a beast? Why is that you roam the wilderness?"-pg. 59. After I read this, I remembered that Gilgamesh had began this journey after his friend and companion Endiku had died. Gilgamesh was still grieving his death. Endiku had been Gilgmaesh's friend, so now he was becoming more a nature person, now he apreciated nature more than before. Endiku had taught him its importance, and now he was a less self-centered person.
When Gilgamesh met Utnapishtim, there was something Utnapishtim said to him that impacted me: "You who were born the son of a goddess mother, why do you grieve for your mortal father?...How long is the eye able to look at the sun? From the very beginning nothing at all has lasted. ...There they established that there is life and death. The day of death is set, though not made known."-pg. 64. This passage made me think that the only thing we are sure of when we are born, is that one day we are going to die. Nothing is mean to last forever, and that's a destiny we all have to accept. And I strongly believe that Gilgamesh should be aware of this, because even though he is two-thirds God, he is still one-third human.
When Utnapishtim told Gilgamesh his story of how he achieved "Eternal Life," reminded me of the story of Noah's Ark. It was pretty much the same story, the world had suffered a flood, and a god told Utnapishtim to build a boat, and with his family and a pair of each type of animal, go in it, and safe themsleves. Because Utnapishtim's s story was so similar to Noah's Ark, I asked myself this question: Is Noahs Ark and Utnapishitm's story the same event?