Vedanta has provided the science of religion with an intelligible and international framework of terms and concepts, which help the various religions of the world to understand them, to understand and welcome each other, and to understand and appreciate the physical sciences. This is precisely the service that modern physical science has rendered to all physical or positivistic knowledge. Both thus become, though developed in different countries and in different periods of history, human contributions to knowledge and life fulfilment. In the Gita, Sri Krsna describes the ‘without’ of nature as the aspect of apara prakrti, or ordinary nature, and the ‘within’ of nature as the aspect of para prakrti, or higher nature of the one total divine nature.