Weeping is like the clouds, and longing is like the heat of the sun. Just as
the sun’s heat is the cause of bringing rains from the clouds, by which this
world remains in existence; similarly, separation, longing for Him and
restlessness - all these are like fires which make the currents of grace and
mercy of God burst out, as the rain does from the clouds, and pacify the
hearts of devotees. Tears in the eyes and pain in the heart are the two pillars
between which we pass to go within. (Rumi)