The Shvetashvatara Upanishad, in verses 1.14 to 1.16, suggests meditating with the help of syllable "Om", where one's perishable body is like one fuel-stick and the syllable "Om" is the second fuel-stick, which with discipline and diligent rubbing of the sticks unleashes the concealed fire of thought and awareness within. Such knowledge, asserts the Upanishad, is the goal of Upanishads. The text asserts that "Om" is a tool of meditation empowering one to know the God within oneself, to realize one's Atman (Soul, Self).