The world exists for ananda

It is for ananda that the world exists; for joy that the Self puts Himself into the great and serious game of life; and the joy which He sees is the joy of various self-expression. For this reason it is that no two men are alike, no two nations are alike. Each has its own separate nature over and above the common nature of humanity and it is not only the common human impulses and activities but the satisfaction and development of its own separate character and capacities that a nation demands.

Ref: Karmayogin