The Upanishads, Part 1 (SBE01), by Max Müller, , at sacred-texts.com
1. The hiṅkâra is the earth, the prastâva the sky, the udgîtha heaven, the pratihâra the regions, the nidhana the sea. These are the Sakvarî Sâmans, as interwoven in the worlds 1.
2. He who thus knows the Sakvarîs, as interwoven in the worlds, becomes possessed of the worlds, he reaches the full life, he lives long, becomes great with children and cattle, great by fame. His rule is, 'Never complain of the worlds.'
31:1 The Sakvarîs are sung with the Mahânâmnîs. These are said to be water, and the worlds are said to rest on water.