Ilmarin

Ilmarin is the mansion of Varda, and was located on the summit of Taniquetil, the highest peak of the world. It was a domed, marble watchtower from which Varda could watch all of Arda. Manwë, however could only watch all of Arda if Varda sits on her Throne. Manwë's followers, the spirits that took the forms of hawks and Great Eagles often came here to deliver news.

The High Feast was taking place in Ilmarin when Melkor came to destroy the Two Trees of Valinor.

When Varda sits of her Throne, she hears more clearly than any other ears, the prayers and laments of those in need from the furthest east to the furthest west, from the hills and the valleys, and from the dark places that Melkor has made upon Earth.She also sees further than all other eyes, through mist, through clouds, through airs and through darkness, and over the leagues of the sea.

Only if Varda sits on her Throne, Manwë sees further than all other eyes, through mist, and through darkness, through clouds and over the leagues of the sea.

Etymology

The name Ilmarin means "Mansion of the High Airs" in Quenya.

The name Oromardi means "Lofty Halls" in Quenya.