In the final minutes, Sauron confesses that he's been manipulating Galadriel since they first met — using her as a way to get back to Middle-earth to fight back against his enemies in the Southlands and indirectly form the land of Mordor but also to get closer to Celebrimbor and the Elven smiths.
She leaps off the ship taking her away from Middle-earth, encounters Halbrand, and eventually saves his life, and in the process, accidentally helps bring Sauron back to power.
Galadriel, however, didn't want to leave. She had already refused to leave once because she wanted to continue hunting Sauron. That's why she decided to lie about Sauron's identity -- so that she could go after him.
The Dark Lord easily overpowers her, and after Galadriel rejects his proposal to join him, he traps her in illusions and leaves her to drown in the water.
Galadriel Had Fantasies About Overthrowing Sauron
Her intentions would have been pure because she sought to instill peace. Ultimately, however, Galadriel would have been corrupted by the power of the One Ring, and her beauty would become an object of worship.
In The Lord of the Rings, it is said that had Galadriel chosen to use her powers for evil instead of good, she would have been even more destructive and terrifying than Sauron himself. Galadriel was the greatest and most powerful of all Elves in Middle Earth in the Third Age.
She's an Elf, So Has a Very Long Lifespan
The first and most obvious reason Galadriel gets to hang on to her Ring – Nenya, the Ring of Water – from beginning (i.e. its forging) to end (the destruction of the One Ring) is that she lives long enough to do so.
Though Galadriel doesn't share her news, Elrond is suspicious and wanders out to find the genealogy scroll that leads him to figure out that Halbrand is Sauron. Unfortunately, he finds this news too late, arriving back at the workshop just as the elven rings (the rings of power) are being completed.
Galadriel has been so obsessive in her search for Sauron that she's particularly wary of becoming what she hates the most.
But the Elves were not so easily ensnared, and as soon as Sauron put on the One Ring they and Celebrimbor were aware of him, and realised they were betrayed. They hid their Rings from Sauron and did not use them.
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.
So Season 1 of The Rings of Power works basically as an origin story for Sauron. Instead of just seeing the villain being bad just because of a predefined conception of who he was, we saw him actually trying to be good for once, then embracing his evil nature.
They are: Narya, the ruby-encrusted Ring of Fire; Nenya, the adamant Ring of Water; and Nilya, the sapphire-emblazoned Ring of Air.
Elrond confronts Aragorn in The Return of the King and says that Arwen is dying, her fate tied to the Ring. Arwen isn't necessarily dying because of the Ring, but now that she is mortal, she is dying through the slow decaying of time.
Right from their early days, Gandalf and Galadriel shared a deep connection, possibly because they both carried a Ring of Power. She sensed Saruman was an up-and-coming baddie and pushed for Gandalf to head the White Council instead. While her desires fell on deaf ears, she was eventually proven right.
Galadriel is thousands of years old. However, in The Rings of Power, she is much younger than when Frodo meets her in The Lord Of The Rings. She has a while to go yet until she becomes the hero, and someone worthy of a ring of power.
Sauron appears most often as "the Eye", as if disembodied. Tolkien, while denying that absolute evil could exist, stated that Sauron came as near to a wholly evil will as was possible.
Sauron's identity was kept secret throughout most of the season, but it was revealed in the season finale that Sauron is actually the character we know as Halbrand (Charlie Vickers). He was adrift when Galadriel found him, and appeared to be genuine in his remorse (or at least regret) for his actions under Morgoth.
Elrond Didn't Have the Strength to Stop Isildur
The main reason that Elrond wouldn't have pushed Isildur was that he simply couldn't have brought himself to destroy the Ring. He knew that the Ring needed to be destroyed, but actually doing it would have been different.
Once again the movie fools people into thinking that Isildur actually went into the Chamber of Fire with Elrond. So, theoretically, Elrond might have run up behind Isildur and pushed him in. Nothing in the book suggests Isildur went into the Chamber.
Those who bore the rings would have been corrupted, enslaved to Sauron's will, and this would probably include Galadriel - who he'd have surely given a ring. Sauron would only then have gone to Mordor, claiming the orc army that had been created there.
The three Elven Rings were conceived as a means of keeping magic (formally known in J.R.R. Tolkien's Legendarium as the Light of the Eldar) from fading in Middle-earth.
Many Lord of the Rings fans also say Tom Bombadil is actually the most powerful character in all of Middle Earth, due to his apparent immortality, ability to completely resist the Ring, power over his domain, and knowledge that comes from living since the beginning of time.
The Ring cannot effect Tom Bombadil because he is outside the whole issue of Power and Domination; Tolkien uses Tom as an allegory that even this intense struggle between "good and evil" is only part of the whole picture of existence.
God is the most powerful entity in Tolkien's Lord of the Rings universe. The Elvish name for him is actually Eru Ilúvatar, meaning “the one, father of all.” So the question becomes: Who is the second-most powerful being? Originally, it was Melkor, “he who arises in might,” the most powerful of the Ainur (or angels).