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Vak laina or hukam laina (obtaining or receiving the Guru’s word or command) is for the Sikhs tantamount to having a darshan or audience of the Guru Granth Sahib, ever-present Guru for them.
Customarily, vak or hukam is recited in sangat by an officiant after the installation or opening of the Guru Granth Sahib in the morning and every time after ardas or supplicatory prayer is said at the end of the service.
Vak or hukam may be read individually by the seeker from the Holy Book in the gurdwara or in his own home or he may request the granthi (officiant) or any one else present to read it out for him.