Aman is a location in J. R. R. Tolkien's legendarium, also known as the Undying Lands or Blessed Realm. It was a continent that lay to the west of Middle-earth across the great ocean Belegaer, although it lay in another dimension during the time of The Lord of the Rings. It is the home of the Valar, and three kindreds of Elves: the Vanyar, some of the Noldor, and some of the Teleri. The (probably large) island of Tol Eressëa lies just off the eastern shore.
Upon the destruction of Almaren in very ancient times, the Valar fled to Aman, and there established the realm of Valinor. Seeking to isolate themselves, they raised a great mountain fence, called the Pelóri, on the eastern coast, and set the Enchanted Isles in the ocean to prevent travellers by sea from reaching Aman.
For reasons unknown, the Valar left two lands outside the wall of the Pelóri: Araman to the northeast and Avathar to the southeast. Ungoliant, an ancient being in the form of a great spider, had managed to escape...
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