Quick links  Pause I am just using a catchy title. By God I am referring to that root cause for the existence of this world. The Upanishads refrain from calling it by any name and they just refer to it as ‘Tat’ or ‘Sat’ - literally meaning ‘That’ or ‘Existence’. Interestingly, many ancient scriptures – whether it is Bible or Quran or even the Upanishads have almost identical definition for God. They define God (or the ‘Tat’ in the Upanishads) as the one from which this world has emerged, the one that sustains whatever exists, and the one into which everything returns.