In the beginning of creation, fourteen svaradhvani(s) (swaradhvani; vowel-sound) were created from the four-mouthed Brahmā (Brahma). Manu, ruler of the fourteen Manvantara, emanated from these fourteen vowels. U-kāra is the fifth among the vowel-sounds emanated from the mouth of Brahmā. From U-kāra, Tāmasa (Tamasa) Manu was born. In Vāyupurāṇa (Vayupurana), these fourteen vowel-sounds from A to Au are conceptualised as embodied gods. The complexion of the embodied figure of U-kāra is of a copper colour.