In it the urges him to live a pious life, to cleanse his heart from the defilement of the world, and to become detached from his own self and all created things. Bahá'u'lláh extols His own Essence, and states that for many years He had revealed the Words of God in great profusion while hiding His glory behind many veils of concealment. When the appointed hour had struck, however, He unveiled His exalted station and shed an infinitesimal measure of the light of His countenance upon all created things. As a result of this outpouring, the Concourse on high and the chosen ones of God were awestruck and dumbfounded. [RoB2p274]