This is a two part series essay. The objective of this essay is to give a basic understanding of what Sanatana Dharma essentially is. Part 1 gives the required background and the essential concepts to understand the working model of Sanatana Dharma. Part 2 gives a working model of Sanatana Dharma with its practical aspects together with the explanations of the major concepts contained in the practice of Sanatana Dharma.