Sri Aurobindo
Letters of Sri Aurobindo
Volume III - Part 3
Fragment ID: 12866
If these were imaginations, you would be able to reproduce them exactly each time you thought of them. The idea that it is imagination comes from the physical mind which cannot believe in anything supraphysical.
This opening of the chest into the void (not really the void, but the infinite Akash of the Chit universal and illimitable) is always the sign of an opening of the emotional being into the wideness of the Universal Divine. The image of the Akash is often seen by sadhaks in Dhyana. When the consciousness is liberated, whether in the mind or other part, there is always this sense of the wide infinite emptiness. From the top of the head to the throat is the mental plane of the being – a similar opening and emptiness or wideness here is the sign of the mind being freed into the Universal. From the throat to the stomach is the higher vital or emotional region. Below is the lower vital plane.