To praise God is to be purified: when purity arrives, corruption quickly leaves. Opposites flee from each other: night flees when the light dawns. When the pure Name enters the mouth, neither impurity nor sorrow remain. Your awe and love are the rope to catch My gift: beneath every "O Lord" of yours is many a "Here am I" from Me.
[Mathnawi III, 186-188;197]

Jelaluddin Rumi, The Rumi Collection by Kabir Helminski, editor