The Physics of the Secret Doctrine

"AT the root of all our thinking, of all human endeavour to penetrate and understand the great triple mystery of Matter, Force, and Life (or Consciousness), to solve if possible the great Riddle of the Universe, to go behind the mere appearance of things into the arcane region of Primal Causes: there lies a fundamental necessity-expressed in different ways in Religion, Philosophy, and Science-to unify all diversity under some one general term or concept; to postulate the existence of some One Root Principle, existing eternally as the Cause, the Source, or the Container of all things."