Language and abstraction
We humans understand the world through language, we use it to communicate our thoughts, feelings and ideas.
Language comes in many forms, e.g. as spoken language, written language, programming language, sign language, body language or musical notation.
Every language has its own syntax, grammar and rhythm. It has a special alphabet of letters, notes, sounds or gestures that can be assembled into increasingly complex constructions.
Language is an essential building block of consciousness.