Quote from : Madhumalati: An Indian Sufi Romance Book

116. "I have heard that on the day the world was born, the bird of love was released to fly. It searched all the three worlds but could not find a fit resting place. So it turned and entered the inmost heart, favoured it and never flew elsewhere. The three worlds asked it then, 'Why are you attached to the human heart?' 'Suffering," it replied, "is the only hope for humans. Where there is sorrow, there I dwell.' Where there is grief in the world, love has its dwelling.