O PEOPLES of the world! The Sun of Truth hath risen to illumine the whole earth, and to spiritualize the community of man. Laudable are the results and the fruits thereof, abundant the holy evidences deriving from this grace.
This is mercy unalloyed and purest bounty; it is light for the world and all its peoples; it is harmony and fellowship, and love and solidarity; indeed it is compassion and unity, and the end of foreignness; it is the being at one, in complete dignity and freedom, with all on earth.
There are two kinds of light.
There is the visible light of the sun, by whose aid we can discern the beauties of the world around us—without this we could see nothing.
Nevertheless, though it is the function of this light to make things visible to us, it cannot give us the power to see them or to understand what their various charms may be, for this light has no intelligence, no consciousness.
This light of the intellect is the highest light that exists, for it is born of the Light Divine.
The light of the intellect enables us to understand and realize all that exists, but it is only the Divine Light that can give us sight for the invisible things, and which enables us to see truths that will only be visible to the world thousands of years hence.
~ ‘Abdu’l-Baha, Paris Talks