What is the agent of transformation?

I’ve often wondered how the inner experience of oneself changes with the transformation of ego identity and structure. I know how my life is freer and more fluid from the years of work and exploration, but I still have a very active subjective inner life with habitual mental activity, concerns and attitudes, old patterns, and historic identities.

I found this reflection by A. H. Almaas on his experience to be very poignant and instructional.