Al Ghazālī (Sufi Theologian and Philosopher, c. 1058-1111)
“The outward eye derives from the world of sensation and visibility, while the inward eye derives from another world–namely, the world of dominion.”
- From The Niche of Lights (First Chapter) by Al Ghazālī, translated by David Buchman. Utah: Brigham Young University Press, 1998.