Sri Aurobindo
Letters of Sri Aurobindo
Volume III - Part 2
Fragment ID: 12329
The lights one sees in concentration are the lights of various powers or beings or forces and often lights that come down from the higher consciousness.
The violet light is that of the Divine Compassion (karuṇā – Grace) – the white light is the light of the Mother (the Divine Consciousness) in which all others are contained and from which they can be manifested.
Purple is the colour of vital power. “Red” depends on the character of the colour, for there are many reds – this may be the colour of the physical consciousness.