9/10 turkish prayer rugs have the direction of the pile opposite that of traditional persian prayer rug designs. in other words, woven upside-down from outside in determine prayer/meditation/column rug often by 1. unidirectional design, 2. mehrab covering top of the field, only isolated end. 3, either a design element hanging from or leading to the mehrab. 3. size of the rug would indicate prayer rug, although they can be very large too. just because this is a prayer rug does not mean it's intention was for prayer.