Cuiviénen is a fictional location in J.R.R. Tolkien's legendarium, specifically in his work "The Silmarillion." It is described as the place where the first Elves awoke, situated by the shores of a lake in Middle-earth. The name translates to "Water of Awakening," reflecting its significance in Elven history. In the mythology, Cuiviénen is not only the birthplace of the Elves but also a site of great beauty and tranquility. It is surrounded by mountains and forests, providing a serene environment for the Elves as they began their journey into the world. This location plays a crucial role in the early tales of the Elves and their eventual migration across Middle-earth.