India is a karma bhoomi because while it is large and wide ,it is also semi closed, allowing pockets of culture to exist and evolve, and move away when threatened, thereby all possible cultural  pathways exist, like a large dna box. also, it is so chaotic at the centers that evolution is forced and only the determined make it without dilution. It is so crowded and chaotic that one super node cannot emerge ( rock paper scissors) hence co operation and tolerance become a core value, which encourages more tolerant complexity to experjment and grow.