The whole imagery of the Sufi literature in the Persian language, written by great poets, such as Rumi, Hafiz, and Jami, is the relationship between man as the lover and God as the Beloved; and when one reads understanding that, and develops in that affection, then one sees what pictures the mystics have made and to what note their heart has been tuned. It is not easy to develop in the heart the love of God, because when one does not see or realize the object of love one cannot love.