Sri Aurobindo
Letters of Sri Aurobindo
Volume II - Part 3
As for the book itself1, I am unfortunately ignorant of the Telugu language and cannot read the original, but from the account given in English I have formed some idea of the substance. I gather that it is in the main a statement and justification of the Purna Yoga and of my message; I believe you have rightly stated the two main elements of it,– first, the acceptance of the world as a manifestation of the Divine Power, not its rejection as a mistake or an illusion, and, secondly, the character of this manifestation as a spiritual evolution with Yoga as a means for 
the transformation of mind, life and body into the instruments of a spiritual and supramental perfection. The universe is not only a material but a spiritual fact, life not only a play of forces or a mental experience, but a field for the evolution of the concealed spirit. Human life will receive its fulfilment and transformation into something beyond itself only when this truth is seized and made the motive force of our existence and the means of its effective realisation discovered. The means of realisation is to be found in an integral Yoga, a union in all the parts of our being with the Divine and a consequent transmutation of all their now jarring elements into the harmony of a higher divine consciousness and existence.