This chapter is devoted to the analysis of physical entities that are formed by humans in objective mental reality but are regarded as elements of the physical world. They are represented by verbal concepts and illustrated through mental images. For example, entities denoted by notions such as density, momentum, and energy, as well as abstract categories like ecology or information, are mental in their nature but are considered part of physical reality. At the same time, people do not usually notice the phenomenological differences between entities that are accessible to perception and those that are not. Without objective mental reality, it would not only be impossible to use many objects, but even to understand them, since their functions, meanings, and causal relationships are revealed only within mental reality. Many physical entities exist solely as constructions of objective mental reality. This realm not only complements but radically transforms the perceived world, filling it with entities, relations, and dependencies without which anthropomorphic reality would be impossible. Objective mental reality, as a superstructure over perception, shapes the spatio-temporal structure of the physical world and constructs the psychophysical picture in which society exists.