The believer only acquires true rest when he meets Allah, although rest may also be obtained by these four things: silence, by which you recognize the state of your heart and your self in your relations with your Creator; retreat, by which you are rescued from the evils of the age, outwardly and inwardly; hunger, which kills fleshly appetites and temptation; and wakefulness, which illuminates your heart, purifies your nature and cleanses your spirit.

Imam Sadiq (as) describing ‘rest’, Lantern of the Path  (via gharq)