The yoga we practice is not for ourselves alone, but for the Divine; its aim is to work out the will of the Divine in the world, to effect a spiritual transformation and to bring down a divine nature and a divine life into the mental, vital and physical nature and life of humanity. Its object is not personal Mukti, although Mukti is a necessary condition of the yoga, but the liberation and transformation of the human being. It is not personal Ananda, but the bringing down of the divine Ananda - Christ's kingdom of heaven, our Satyayuga - upon the earth.
Sri AurobindoFor the powers of our mind, life, and body are bound to their own limitations, and however high they may rise or however widely expand, they cannot rise beyond them. But still, mental man can open to what is beyond him and call down a Supramental Light, Truth, and Power to work in him and do what the mind cannot do. If mind cannot by effort become what is beyond mind, Supermind can descend and transform mind into its own substance.
Sri AurobindoMan is a transitional being, he is not final; for in him and high beyond him ascend the radiant degrees which climb to a divine supermanhood. The step from man towards superman is the next approaching achievement in the earth's evolution. There lies our destiny and the liberating key to our aspiring, but troubled and limited human existence — inevitable because it is at once the intention of the inner Spirit and the logic of Nature's process.
Sri Aurobindo