YV 7.6e

If he were to make it by friction, he would divide (the fire), he would produce a foe for him. It must again be kindled (with wood) around; verily he produces it from its own birthplace, he does not produce a foe for him. Darkness seizes on him whose fire in the pan is extinguished, darkness is death; a black garment, a black heifer are the sacrificial fees; verily with darkness [1] he smites away the darkness which is death. Gold he gives, gold is light; verily with the light he smites away the darkness; moreover gold is brilliance; verily he confers brilliance upon himself. b Like heavenly light, the heat; hail! Like heavenly light, the Arka hail! Like heavenly light, the bright; hail! Like heavenly light, the light; hail! Like heavenly light, the sun; hail!' The fire is Arka, the horse sacrifice is yonder sun [2]; in that he offers these libations he unites the lights of the Arka and the horse sacrifice; he indeed is an offerer of the Arka and the horse sacrifice, for whom this is done in the fire. c The waters were first this world, the moving; Prajapati saw this first layer, it he put down, it became this (earth). To him Viçvakarman said, 'Let me come to thee'; 'There is no space here', he answered [3]. He saw this second layer, he put it down, it became the atmosphere. The sacrifice said to Prajapati, 'Let me come to thee'; 'There is no space here', he answered. He said to Viçvakarman, 'Let me come to thee.' 'In what way wilt thou come to me? ' 'By the regional (bricks)', he replied. He came with the regional (bricks), he put them down, they became the regions [4]. The supreme lord said to Prajapati, 'Let me come to thee'; 'There is no space here', he answered. He said to Viçvakarman and the sacrifice, 'Let me come to you two'; 'There is no space here', they answered. He saw this third layer, he put it down, it became yonder (world). Aditya said to Prajapati, 'Let me come to thee' [5]; 'There is no space here', he answered.