reference: Sri Aurobindo and the Mother, Our Many Selves: Practical Yogic Psychology, Chapter 2, Planes and Parts of the Being, pp. 97-98 This episode is also available as a blog post at https://sriaurobindostudies.wordpress.com/2023/10/04/time-perspective-on-achieving-spiritual-realisations-and-change-of-human-nature/