  Line starts from the broad division stipulated by Sun: there is the intelligible realm and the visible realm. Each of these is again divided into two (unequal) parts. At the bottom of the visible one finds images, shadows and such. The ordinary physical objects of which the images are images occupy the upper portion. Set over the images is the faculty of eikasia, imagination. Set over the physical world is the faculty of pistis, literally faith or conviction, but generally regarded as belief. Plato next turns to the lower segment of the intelligible portion of Line: