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Sauron wants Galadriel to become his queen because she's useful, says Vickers. As he's already shown, Sauron can accomplish his objectives much more quickly when he has a highly regarded Elf warrior to get him into places like Numenor and Eregion (where Celebrimbor lives). “He feels a connection to her.
As it turns out, even after forging the One Ring, Sauron was still capable of feeling fear and regret. Actually, even during the War of the Ring and at the height of his power.
Sauron is an expert manipulator and likely sees Galadriel and her power as an asset. In line with the old adage, "Keep your friends close; keep your enemies closer," he'd rather have her on his side than against him.
About 500 years into the Second Age, Sauron reappeared, intent on taking over Middle-earth and ruling it as a God-King. To seduce the Elves into his service, Sauron assumed a fair appearance as Annatar, "Lord of Gifts", befriended the Elven-smiths of Eregion, led by Celebrimbor, and counselled them in arts and magic.
Sauron's hotness is canon.
When Thangorodrim was broken and Morgoth overthrown, Sauron put on his fair hue again and did obeisance to Eönwë, the herald of Manwë, and abjured all his evil deeds. And some hold that this was not at first falsely done, but that Sauron in truth repented, if only out of fear.
Sauron had every reason to fear Aragorn, but his doom came from the strangest of places. Much of the story of Lord of the Rings is about the little guy finding a way to become a hero. Sauron could never have imagined a Hobbit would oppose him. He never imagined a mortal would willingly throw the power away.
Around FA 52 (FA as in First Age), Galadriel came to Doriath. Galadriel was one of the Ñoldor who came to Middle-earth wishing to see the lands and rule a realm of her own. She came with the second host of Elves from Aman with Fingolfin and Finrod. In Doriath, she and Celeborn fell in love and married.
Plus, he makes the compelling argument that while he lusts for power, she has a good heart and would help him remain good rather than turning to evil. But when it becomes clear to Galadriel that Halbrand/Sauron cannot tell the difference between “saving” and “ruling” Middle-earth, she rejects his proposal.
As to whether their relationship was sexual or even romantic, Tolkien keeps it platonic with Galadriel's marriage to Celeborn further cementing that fact given Tolkien's strict Catholic beliefs. After all, Elves marry only once, and adultery of any kind is completely unacceptable.
She already feels an outcast after Gil-galad tried to send her back to the Undying Lands, and she fears that if she reveals what she has done, it will be the final nail in the coffin. Instead, when Elrond pulls her from the river Glanduin, and she races back inside to Celebrimbor's forge, she chooses to stay silent.
During the Second Age, long before the events of The Hobbit and The Lord of the Rings, Sauron actually took on a beautiful appearance for some time, which he used to deceive the Noldorin Elves of Eregion.
He genuinely does wish to heal the world, to right the wrongs of the past, to save all of the beings and creatures from war and greed and devastation, but in achieving total dominion of the world, he cannot see that is the exact evil he sees and wants to cull in everyone else.
Sauron promised Galadriel she would be his queen if she helped him. But Sauron isn't trustworthy and his words cannot be taken at face value.
Thus, Galadriel's dark form in Jackson's The Lord of the Rings personified what would have occurred had the Lady of Lothlorien given in to temptation and taken the One Ring for herself. She would have succumbed to evil because the Ring was indomitable, even with her power.
Galadriel has very strong magical powers, and she is said to be the greatest of the Ñoldor after Fëanor. The majority of her powers come from her Ring of Power, Nenya, the Ring of Water.
Galadriel in Rings of Power Bears Little Resemblance To Her Lord Of The Rings Character. The Rings of Power showed Galadriel as bitter and impatient. She was driven by a desire for revenge. Her father and three of her brothers has been killed by Morgoth.
Nonetheless, it has become increasingly clear over the last few episodes of the Amazon series that there is a strong bond between Galadriel and Halbrand. This bond may have turned into insurmountable love for one another, had they not been destined for different paths.
Galadriel Refusing the One Ring Was More Than a Personal Sacrifice in Lord of the Rings. Galadriel refused Sauronn's One Ring, but her refusal came at a high price. She forewent her desire to rule, but she also doomed Lothlórien.
Yet, since Tolkien does give family trees for other important Elves in the book, such as Galadriel and Elrond, it's clear that Galadriel is not Legolas's mother. (Besides, she is one of the Noldor, not a Silvan or Sindar Elf.)
Celeborn was his son, of the line of the Elder elves, the prince of Doriath. He met and fell in love with Galadriel after they met at a great feast hosted by his father. They were married in the kingdom, and then began to journey to Lindon together, where they lived throughout the Second Age.
Galadriel's brother is named Finrod (Will Fletcher), and he actually plays a remarkably important role in a number of the most significant stories of the First Age in Tolkien's The Silmarillion.
Sauron feared Aragorn (in the movies) because he suspected Aragon had the skills (ranging/fighting), experience (80+ years alive), legitimacy (Isildur's Heir), and raw charisma necessary to unite, lead, and inspire mankind to defeat the orc armies and lay siege to Mordor.
Melkor is the most powerful of the Valar but he turns to darkness and is renamed Morgoth, the primary antagonist of Arda. All evil in the world of Middle-earth ultimately stems from him. One of the Maiar of Aulë betrays his kind and becomes Morgoth's principal lieutenant and successor, Sauron.
Sauron was the most powerful of the Maiar—primordial spirits created to help the Valar first shape the World. His original name was Mairon, which means "the Admirable," and as an immortal spirit born before the world's creation, he was able to perceive the Creator Eru Ilúvatar directly.