Adab is how to act in a given place, situation and time following our Prophet’s (pbuh) example.
All Sufis should have good adab. Good adab starts with believing in Allah and doing things for Allah’s sake. It is pleasing to Allah to be good to other people, being considerate and respectful. How we act in the world in relation with other people and situations has a direct effect on our spiritual being. As Sufis we try to be aligned with Allah at all times. In this path we have to balance the inner and the outer. As Sufis, being in balance outwardly means following adab.