reference:
Sri Aurobindo and the Mother, Our Many Selves: Practical Yogic Psychology, Chapter 2, Planes and Parts of the Being, pp. 27-28
This episode is also available as a blog post at https://sriaurobindostudies.wordpress.com/2023/07/20/the-vital-desire-soul-and-the-true-soul-of-the-psychic-being/
