Sri Aurobindo was not only the best philosopher of the twentieth century, but he was a political leader, a social worker, a poet, a yogi, a spiritual leader, and an ideal teacher. Today in the twenty first century we are living in a world where all the windows of it are wide-open. Good and evil all creeps through the window’s uninterruptedly beyond our control. But it is certainly possible to resist moral degradation if we can lead life in accordance with Indian spiritualism. Now the question is: how there been any relevance of Sri Aurobindo’s spiritual philosophy during this modern era of rocket science and computer technology??? The answer is very obvious and is ‘yes’. In this context Sri Aurobindo’s Teaching and Philosophy is utmost important if Human being wants to live in peace and harmony. He is very much relevant in this Twenty first century where Science and Spirituality should go side by side. The scientific development which is fixed eye only in the materialistic progress will not be able to achieve the permanent peace in the world but simultaneously it is very much necessary to uplift the human being through spirituality.