If you desire purification of the heart then shut your eye from the corporeal world. This is the hole through which heart is defiled. - Shaqiq al-Balkhi

Depend more on the promises of God than those of men.

As long as the heart of man remains engrossed in recollection of God he is in prayer may he be in the bazaar. If his lips are too busy in dhikr; it would be much better.

God hath made the pious living in their death and hath made the wicked dead during their lives, i.e., the pious, though they be dead, yet live, since the angels utter blessings on their piety until they are made immortal by the recompense which they receive at the Resurrection.