Perception is how individuals organize and interpret their sensory impressions to understand their environment. Perception creates our subjective experience of reality rather than reality itself. The perceptual process involves recognizing stimuli through our five senses and proprioception, as well as cognitive processes for interpreting information. Perceptual illusions can make us perceive things that are not real, such as seeing a 3D cube in an image that is actually just circles and lines on a flat surface. Optical illusions demonstrate how perception does not always match objective reality.