Sri Aurobindo
Letters on Yoga
5. Planes and Parts of the Being
In the forehead between the eyes but a little above is the ājñācakra, the centre of the inner will, also of the inner vision, the dynamic mind, etc. (This is not the ordinary outer mental will and sight, but something more powerful, belonging to the inner being.) When this centre opens and the Force there is active, then there is the opening of a greater will, power of decision, formation, effectiveness, beyond what the ordinary mind can achieve.
Current publication:
Sri Aurobindo. Letters on Yoga // SABCL.- Volume 22. (≈ 28 vol. of CWSA).- Pondicherry: Sri Aurobindo Ashram, 1971.- 502 p.
Other publications:
1. 10253.
Sri Aurobindo. Letters on Yoga. I // CWSA.- Volume 28. (≈ 22 vol. of SABCL).- Pondicherry: Sri Aurobindo Ashram, 2012.- 590 p.
2. 20620.
[Largest or earliest found passage: ]Sri Aurobindo. Letters of Sri Aurobindo: In 4 Series.- Second Series [On Yoga].- Bombay: Sri Aurobindo Circle, 1949.- 599 p.