The author argues in favour of dividing world image (as it is treated by A.N. Leontiev, S.D. Smirnov) into seven blocks - visual, aural, olfactory, gustatory, tactile - and two amodal - an image of the outside world and an image of self. Each amodal block contains two components - an area of spatial "nuclear" structures and an area of non-spatial structures called meanings. The symbol is treated as an object of the outside world which, after being perceived by a human, forms both a spatial structure and a meaning in the amodal block containing the image of the world. A sign is a symbol whose spatial component is practically non-existent. Senses are treated not as separate objects in mental structures (which are meanings), but as links between elementary structural units of different blocks of world image.