After much speculation, the Duffer Brothers have finally revealed why they chose the ending where Eleven sacrifices herself in the Stranger Things Season 5 finale.In the Stranger Things Season 5 finale, Eleven and her group get caught by the military. However, the military couldn't find her in the truck. Mike sees her standing on the gate upside down. Mike and Eleven talk to each other in her memory, where Eleven tells Mike that she has to go to bring everything to an end. Additionally, she asks him to thank her friends for being kind to her. While Mike is not ready to let her go, she tells him that one day he will understand why she did it.The ending of Eleven was a bittersweet moment for the Stranger Things fans who were happy with Vecna's defeat but were not ready for Eleven to sacrifice herself.Speaking of El's ending, the Duffer Brothers revealed in a behind-the-scenes episode, released on Tudum:"While they are leaving her behind ultimately at the end, she's always going to be a part of them, and she's always going to be there. That's really what we wanted the ending to be about."Stranger Things Season 5 finale: The Duffer Brothers reveal why Eleven will forever be a part of the group View this post on Instagram Instagram PostThe Duffer Brothers, speaking of Eleven's ending in the Stranger Things Season 5 finale, added that:"Eleven sorts of presents represent to us the magic of childhood, right? Something fantastical. The elements of it that feel almost supernatural, magical, and wondrous. That feeling is encapsulated by Eleven."The reason why she will forever be a part of the group consisting of Will, Mike, Lucas, Dustin, and Max.Ultimately, the show started with Eleven joining Lucas, Dustin, and Mike in episode 1 and slowly becoming their friend and helping Will when he is captured by the Mind Flayer. Eleven was the first one to reveal to Mike that Will is hiding, and she opened the gate.Stranger Things Season 5 ends with Eleven protecting her friends one last time by sacrificing herself, knowing the military will always be behind her if they know she's out there.Thankfully, none of the characters in the finale have a brutal ending except for Vecna, who is the ultimate villain. The creators previously hinted about the show's ending when speaking to Variety that they don't plan on a bloodbath, as it would be depressing for the viewers.While Eleven simply disappears, the finale still gives hope, as Mike recounts the story of the mage, believing that Eleven is still out there, speculating that Kali would have helped her create an illusion of her.However, this is not completely confirmed, leaving viewers to decide for themselves whether to believe it or not.Speaking of Eleven's ending, Millie Bobby Brown said:"I kind of loved that ending. That there is just such a bigger purpose to Kali's powers. Everything has a purpose. Everything's there for a reason."Millie Bobby Brown, in a Capital FM interview last year, hinted at her character's ending, revealing that when she first learned about it, she simply said, 'ohhh' and then walked away slowly.While Mike's theory isn't confirmed, fans around the world are holding onto hope, believing that Eleven isn't dead and is still out there somewhere, providing a satisfying ending for the character.Follow Soap Central to stay updated with more insights on the Stranger Things Season 5 finale.