Love for God begins with detachment from things human and visible. Purification of heart and intellect marks the intermediate stage, for through such purification the eye of the intellect is spiritually unveiled and we attain knowledge of the kingdom of heaven hidden within us (Luke 17:21). The final stage is consummated in an irrepressible longing for the supranatural gifts of God and in a natural desire for union with God and for finding one’s abode in Him.
~Nikitas Stithatos