[2][3] This room is where the Guru Granth Sahib sits on a raised throne, or takht, in a prominent central position.
In the Diwan Hall, people play worship hymns from the Guru Granth Sahib.
People visiting the Gurdwara sit on the floor, often cross-legged, as pointing one's feet towards an object or person — in this case, the Guru Granth Sahib — may be mistaken as disrespectful according to cultural norms.
Also in the diwan hall, there is another platform where musicians (called the Ragis) sit and play their instruments while the congregation sings hymns.
Music is an important part of Sikh worship because it accompanies the singing of hymns from the Guru Granth Sahib.