"Master: With what light do you see?
Disciple: With the sun by day, with the lamp by night.
Master: With what light do you see these lights?
Disciple: With the eyes.
Master: With which light do you see the eyes?
Disciple: With that of the mind.
Master: By what light do you know the mind?
Disciple: Through that of the Self.
Master: So you are the light of the lights...
Disciple: Yes. I am the One..."
Sri Bhagawan Ramana Maharishi