Perception

Perceptions vary from person to person. Different people perceive different things about the same situation. But more than that, we assign different meanings to what we perceive. And the meanings might change for a certain person. One might change one's perspective or simply make things mean something else.
The meaning of something will change when you look at it differently. You can look at anything differently and it will have a different meaning.
There is no fixed meaning to anything. You can always change perspectives and change meanings

Perception can be split into two processes:-

 (1) processing the sensory input, which transforms this low-level information to higher-level information (e.g., extracts shapes for object recognition)
(2) processing which is connected with a person's concepts and expectations (or knowledge), restorative and selective mechanisms that influence perception.

Perception depends on the complex functions of the nervous system but subjectively seems mostly effortless because this processing happens outside of conscious awareness.
Since the rise of experimental psychology in the 19th century, psychology's understanding of perception has progressed by combining a variety of techniques. psychophysics quantitatively describes the relationships between the physical qualities of the sensory input and perception. sensory neuroscience studies the neural mechanisms underlying perception. Perceptual systems can also be studied computationally, in terms of the information they process. Perception issues in philosophy include the extent to which sensory qualities such as sound, smell or color exist in objective reality rather than in the mind of the perceiver.

Although the senses were traditionally viewed as passive receptors, the study of illusion and ambiguous images has demonstrated that the brain's perceptual systems actively and pre-consciously attempt to make sense of their input. There is still active debate about the extent to which perception is an active process of hypothesis testing, analogous to science, or whether the realistic sensory information is rich enough to make this process unnecessary.
The perception systems of the brain enable individuals to see the world around them as stable, even though the sensory information is typically incomplete and rapidly varying. Human and animal brains are structured in a modular way, with different areas processing different kinds of sensory information. Some of these modules take the form of sensory maps, mapping some aspect of the world across part of the brain's surface. These different modules are interconnected and influence each other. For instance, taste is strongly influenced by smell.