Now that light which shines above this heaven, higher than all, higher than everything, in the highest world, beyond which there are no other worlds, that is the same light which is within man.

Chandogya Upanishad 3.13.7

Light is principle to photography. The attributes of light reflecting in the resultant image. Including intensity, form, frequency, direction and movement.

BIBLIOGRAPHY:

1. Powell, Aubrey, and Storm Thorgerson. Cover Image. The Dark Side Of The Moon, by Pink Floyd. Abbey Road, 1 Mar 1973.
2. Śaṅkarācāryaḥ, Ādi. Chāndogya Upaniṣad: Translated and with Notes Based on Śaṅkara's Commentary. Translated by Swami Lokeśvarānanda, Calcutta: Ramakrishna Mission Institute of Culture, 1998. Print.