Our “minds and spirits” need to “come into the knowledge of the verities of God” so that “the realities of the Kingdom be made manifest in human hearts.”

Just as human intellects have revealed the secrets of matter and have brought forth from the realm of the invisible the mysteries of nature, may minds and spirits, likewise, come into the knowledge of the verities of God, and the realities of the Kingdom be made manifest in human hearts. Then the world will be the paradise of Abha, the standard of the Most Great Peace will be borne aloft, and the oneness of the world of humanity in all its beauty, glory and significance will become apparent. (Abdu'l-Baha, excerpt from a talk; The Promulgation of Universal Peace, pp. 36-38) (To read the entire talk please visit Talks of ‘Abdu’l-Baha)