Spiritual courtesy or manners, Manners, in this case, the manners of the dervish. It is said that the whole art of being a dervish is in one's manners, not only how one treats God, but even more, in how one treats one's fellow humans. The traditional dervishes have many beautiful rituals entwined with every aspect of daily life, especially in greeting and being with each other, which help to maintain awareness of the Divine Presence.
Adab is prescribed etiquette, a way of living outlined in Islam. Islam has rules of etiquette and an ethical code involving every aspect of life. Muslims refer to Adab as good manners, courtesy, respect, and appropriateness, covering the slightest acts, such as entering or exiting a washroom, posture when sitting, and cleansing oneself.