Reality Is Perception Human reality is full of physical objects but how humans perceive these objects is completely objective, depending on the person and there senses. Perception of physical objects cannot occur without other objects that allow one to perceive these manifestations in the first place. When a sentient being acknowledges that they "exist in a world of physical objects", they also confirm that their sense perception functions to an extent which allows them to reason, even to a small degree, their physical existence. What is a physical object? Does a physical object have to be something you can see, touch, feel, taste, or smell