English: I could not find sources, but am pretty certain this is another Hünkar Mahfili. A Hünkar mahfili is an area from where the sultan could attend the service without being seen (or only partially because of a grating). It would often be raised and afford privacy as well as safety from murder attempts. It would often connect to the Hünkar kasrı, a set of rooms with generally their own entrance, for the sultan and his retinue.