Adab is good conduct, courtesy and propriety. Sufis made it a spiritual discipline: the whole of Sufism, some said, is adab. It governs the disciple’s bearing toward the master, behaviour in the lodge and, above all, the soul’s reverence before God.
Adab
Courtesy: right conduct and refined manners toward God, the master and others, the outward form of inner purity.
Also: Adab, courtesy