This means the oneness of the world of humanity. That is to say, when this human body-politic reaches a state of absolute unity, the effulgence of the eternal Sun will make its fullest light and heat manifest. Therefore we must not make distinctions between individual members of the human family. We must not consider any soul as barren or deprived. Our duty lies in educating souls so that the Sun of the bestowals of God shall become resplendent in them, and this is possible through the power of the oneness of humanity. The more love is expressed among mankind and the stronger the power of unity, the greater will be this reflection and revelation, for the greatest bestowal of God is love. Love is the source of all the bestowals of God. Until love takes possession of the heart no other divine bounty can be revealed in it.
Selected Writings of ‘Abdu’l-Bahá