the language gave us ability not only to communicate and give name to objects, it gave us ability to create and communicate complex ideas. For example soccer, football, basketball, when hear these words you suddenly see a complex things like people playing certain games, they follow specific rules, the fields where they play have specific design. But you don't have to specify everything, you just say one word and another person understands that complex thing.
Yup, imagery of words is strong ;)