in any part of the nature, the less the resistance there.Sri Aurobindo
Letters on Yoga
5. Planes and Parts of the Being
Fragment ID: 480
(this fragment is largest or earliest found passage)
Sri Aurobindo — Unknown addressee
Undated
It is not possible to say with any precision what the resistance in the higher vital parts will be, what form it takes, because it may take different forms with different natures. It is quite normal that there should be some resistance almost at every point to the descent of the higher consciousness; for the different parts of the present nature are each more or less attached to their own established way of seeing, acting, feeling, reacting to things and to the habitual movements and formations of their own domain which each individual has made for himself in the past or in his present life. What is needed is a general plasticity of the mind, the vital, the physical consciousness, a readiness to give up all attachment to these things, to accept whatever the higher consciousness brings down with it however contrary to one’s own received ideas, feelings, habits of nature. The greater the plasticity in any part of the nature, the less the resistance there.
By the higher vital parts of the nature I mean the vital mind, the emotional nature, the life-force dynamis in the being. The vital mind is that part of the vital being which builds, plans, imagines, arranges things and thoughts according to the life-pushes, desires, will to power or possession, will to action, emotions, vital ego reactions of the nature. It must be distinguished from the reasoning will which plans and arranges things according to the dictates of the thinking mind proper, the discriminating reason or according to the mental intuition or a direct insight and judgment. The vital mind uses thought for the service not of reason but of life-push and life-power and when it calls in reasoning it uses that for justifying the dictates of these powers, imposes their dictates on the reason instead of governing by a discriminating will the action of the life-forces. This higher vital with all its parts is situated in the chest and has the cardiac centre as its main stronghold governing all this part down to the navel. I need not say anything about the emotional nature, for its character and movements are known to all. From the navel downwards is the reign of the vital passions and sensations and all the small life-impulses that constitute the bulk of the ordinary human life and character. This is what we call the lower vital nature. The Muladhara is the main support of the physical consciousness and the material parts of the nature.
The antarātman is the soul, the portion of the Divine that is at the inmost basis of the evolving individual and supports the mind and life and body which are the instrumental parts of nature and through which it tries to grow from the material Inconscience towards the divine Light and Immortality which are its proper being. The limitations of its instruments impose upon it an acceptance of the lower movements and a compromise between soul and nature which retard this movement even while it gets its means of advance from that interchange. The psychic being is the soul-form or soul personality developing through this evolution and passing from life to life till all is ready for the higher evolution beyond the Ignorance.
The realisation of the psychic being, its awakening and the bringing of it in front depend mainly on the extent to which 
one can develop a personal relation with the Divine, a relation of Bhakti, love, reliance, self-giving, rejection of the insistences of the separating and self-asserting mental, vital and physical ego.
I can say little about the last question. Sanatkumar is, I believe, one of the four mind-born sons of Brahma; he cannot therefore be identical with Skanda who is a son of Shiva.
Current publication:
[Largest or earliest found passage: ]
Sri Aurobindo. Letters on Yoga // SABCL.- Volume 22. (≈ 28 vol. of CWSA).- Pondicherry: Sri Aurobindo Ashram, 1971.- 502 p.
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