This idea reflects the perception that humans are not the same, and they are always evolving, no matter if physically or emotionally. Human's perception related to the world is always changing, creating new things, expressing their feelings in different ways, trough different sounds. As said by Heraclitus, a pre-Socratic Ionian Greek philosopher, nothing in nature is static, it is always moving.
A comics even though these are old but there is some that are still being made today it gives you a visual and reading about what who where and why is happening.
