In your nature there are many obstacles, chiefly a great activity of the outward-going mind and a thick crust of the impure lower Prakriti that covers the heart and the vital being. Quieting of the mind and purification of the nature are what you must have before you can fulfil your aim. Aspire for these two things first; ask for them constantly from above. You will not be able to achieve them by your own unaided effort. <ref>http://incarnateword.in/cwsa/29/purity#p9</ref>
=== Transformation ===
Purification of the nature by the "influence" of the Spirit is not what I mean by transformation; purification is only part of a psychic change or a psycho-spiritual change—the word besides has many senses and is very often given a moral or ethical meaning which is foreign to my purpose. What I mean by the spiritual transformation is something dynamic (not merely liberation of the self, or realisation of the One which can very well be attained without any descent). It is a putting on of the spiritual consciousness dynamic as well as static in every part of the being down to the subconscient. That cannot be done by the influence of the Self leaving the consciousness fundamentally as it is with only purification, enlightenment of the mind and heart and quiescence of the vital. It means a bringing down of Divine Consciousness static and dynamic into all these parts and the entire replacement of the present consciousness by that. <ref>http://incarnateword.in/cwsa/29/transformation-in-the-integral-yoga#p13</ref>
=== Perfection ===