The Elves turned out to be immune to his direct control, and he could only read their minds for as long as they wore their rings, but then they could read his one, and once they discovered his plot they took them off never to use them again while he was in business.
These Elven Rings were neither touched by Sauron nor did he in any way assist in their making, thereby granting them a purity that the other sixteen lacked.
Why couldn't Sauron rule Elves and the Dwarves that wore the rings by his one ring? Because Sauron underestimated the will of the dwarves and the intelligence of the elves. The dwarves of Middle-Earth were notoriously strong willed, able to resist corruption and stay true to their purpose.
In his notes, Tolkien remarks that Sauron saw Galadriel as his equal. Add that to the fact that she's untrusting of Sauron (yes, even when he's in his Annatar guise) and an unwavering, single-minded force, and it's more likely than not that Sauron feared Galadriel — or the potential she held to upend his plans.
The mystery actually adhered fairly closely to The Lord of the Rings author J.R.R. Tolkien's writings: In the mythology of Middle-earth, Sauron comes to the elves disguised as a “fair” man in order to trick them into forging the first three rings of power and learn their secrets in the process.
Sauron seemed to genuinely feel a connection to her, and part of that came from sensing the darkness inside of Galadriel. In that regard, his offer was really a seduction to the dark side.
Sauron did desire Galadriel... He desired to make her his puppet-Queen. He didn't have any romantic feeling for her. He didn't want to marry her or have romance with her.
Sauron's deepest fear was that Aragorn would use the Ring against him. With its powers of domination, Aragorn could comfortably take over the entirety of Sauron's dark army. Though this would eventually corrupt Aragorn, it would allow him to destroy Sauron and take his place.
Throughout The Lord of the Rings, Galadriel used her Ring of Power to guard her home and people from Sauron's evil. Additionally, while he was in his weakened state, Galadriel could hold him off through the power of will alone.
Summary. Gandalf, as an Istari, was sent to Middle-earth to assist in the fight against Sauron, but he was forbidden from using his full power to interfere with the natural order. Saruman's downfall serves as a warning of the dangers of exceeding the limits placed on the Istari by the Valar.
Because it would have been a massive plot hole that breaks the logic of the story. The Valar are orders of magnitude more powerful than Sauron, even at full potential just after his fall into the influence of Melkor, or any force Sauron could control.
In TA 1000, Sauron began to act in the world again, occupying the stronghold of Dol Guldur, the Hill of Sorcery, in southern Mirkwood in TA 1050, and working in secret. There, he used the guise of a dreaded sorcerer, called "the Necromancer", and the Elves did not yet discern that he was the Dark Lord.
The Three Rings were magical artefacts, three of the Rings of Power. They were forged by Celebrimbor and granted the power to preserve the beauty of things by stopping change and warding off the decay of time and postponing the weariness of the world.
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.
Sauron came in a pleasant disguise as Anatar, Lord of Gifts, and taught Celebrimbor and other elves the art of making magic rings. In addition to the One Ring Sauron made for himself (and made last) there were 19 other Rings of Power.
Morgoth, the first to reign terror upon Middle-earth, was more powerful than Sauron and commanded an army of dragons and Balrogs. While both Morgoth and Sauron were cunning, Morgoth's rule and terror lasted longer and his corruption spread further, making him more formidable in the Lord of the Rings universe.
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.
For those that haven't read Tolkien's work, it's easy to see why many audiences suspect Gandalf and Galadriel are in love. After all, many of their interactions in The Hobbit trilogy practically scream romance. However, their relationship remains purely platonic in Tolkien's source material.
Defeated by the Host of Valinor in the War of Wrath, Morgoth was banished from Middle-earth into the Timeless Void, though it was prophesied that he would one day return.
Saving Galadriel at sea was likely a method of gaining her trust, since Sauron would need an Elf's friendship to enter their realm. Whether he targeted Galadriel specifically because he could exploit her bloody-minded rage and broken heart is unclear.
Galadriel, one of the greatest Elves of Middle-earth, could resist the temptation of the One Ring because of her exceptional strength of will, wisdom, and awareness of the Ring's corrupting influence.
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.
