'Those with Power', 'The Powers' (singular Vala); name given to those great Ainur who entered into Eä at the beginning of Time, and assumed the function of guarding and governing Arda. Called also the Great Ones, the Rulers of Arda, the Lords of the West, the Lords of Valinor. Passim; see especially 10-12, 37, 81-2, and see also Ainur, Aratar.