Q: What is the difference between modification of nature and transformation of it?

Transformation is the casting of the whole nature into the mould of your inner realisation. What you realise you project outwards into your nature. I speak of three transformations—the psychic, the spiritual and the supramental. Many have had the psychic: there were the Christian saints who spoke of God’s presence in their hearts. The spiritual transformation implies the realisation of the Self, the Infinite above, with the dynamic no less than the static side of its peace, knowledge, Ananda, etc. This transformation is difficult. Beyond that is the supramental transformation, the Truth-Consciousness working for the Divine aim and purpose.

– Sri Aurobindo