Without developing the Jnana Chakshu - the eye of wisdom, if a man is content with the Charma Chakshu - the physical eye only, he is no better than the birds and beasts. Human life is invaluable, purposeful and worth experiencing and enjoying. For the fulfilment of such a precious and sacred human life, the acquisition of Atma jnana - Self-knowledge is highly indispensable. ‘The eye of wisdom is highly essential to every man. Jnana netra - the eye of wisdom, Divya-netram - the divine eye, Atma netram - the eye of Self, Brahma-netram - the eye of Brahman - all these names are synonymous. Only when you have the firm faith that all is Brahman - sarvam Brahman, you will see the entire universe as Brahman. That is why the scriptures have exhorted; Fill your vision -Drishti, with Jnana - wisdom, and you will see the Sristhi- creation, filled with Brahman - The Supreme Absolute. The colour of the entire prakriti- Nature depends upon the colour of glasses through which the physical eyes look at it. (ICS , pp. 146-147)