Dhikr is remembrance of God, commanded in the Qurʾān: remember God often. Sufis practise it alone or in groups, aloud or silently, repeating phrases such as lā ilāha illā Allāh or the divine name, sometimes with breath and movement, until remembrance fills the heart and the one remembering is forgotten.
Dhikr
Remembrance: the repetition of God’s names or sacred formulas, the central practice of Sufism.
Also: Dhikr, zikr