Worshippers of Mithras believe that the sun is invincible and this guided them to consider mountains as sacred. Hence the stone cutters and architects of Meymand have set their beliefs out in the construction of their dwellings.
The Mithraic worshippers believed that the sun's invincibility was important, leading them to consider mountains holy sites. Consequently, the builders of Meymand expressed these beliefs through their architectural work.