reference: Sri Aurobindo and the Mother, Our Many Selves: Practical Yogic Psychology, Chapter 2, Planes and Parts of the Being, pp. 33-34 This episode is also available as a podcast at https://sriaurobindostudies.wordpress.com/2023/07/28/making-the-vital-into-a-willing-collaborator-in-the-transformation-of-life/