Ardas is the formal Sikh supplication said standing, with hands folded, before every significant undertaking and at the close of every act of worship and ceremony. Unlike the fixed scriptural compositions of the daily prayers, the Ardas has a partly set and partly variable form: it opens with an invocation recalling God and the ten Gurus, moves through a remembrance of the sacrifices and martyrs of Sikh history and of the community's collective memory, and closes with petitions for the present congregation and for the welfare of all humanity, often adapted to the particular occasion. Recited by one person on behalf of the assembled sangat, who stand and respond, it is the moment at which the community formally places its undertaking or its worship before God and seeks the divine blessing. In its recollection of the whole sweep of Sikh history and its closing prayer for the good of all, the Ardas gathers the community's identity and hope into a single act of standing prayer.
The variable central portion of the Ardas is where individual gurdwaras and families insert petitions specific to their own occasion, a wedding, a recovery from illness, the anniversary of a death, so that the same fixed opening and closing frame a different personal content at every recitation, a structure that lets a single standardized prayer serve an enormous range of individual and communal purposes. Because it is recited standing with the whole congregation joining in supporting responses, the Ardas is also one of the clearest moments in Sikh worship where private petition and public congregational practice visibly merge into a single act.