When Faust asks about the meaning of life, the Devil makes the claim that it can not be understood by use of language. Faust's reaction to the devils lie is typical of most people. The human race has become inspired by questions more than by any other idea ever. We search for different answers to our questions because like Faust, these feelings are also in our breasts. It is obvious that a person needs language to communicate feeling, but I also think that emotions cannot be truly developed and understood without language.
Language directly effects emotions and vice versa.
For example, feral children do not sing happy songs in the rain forest like Mowgli in Disney's The Jungle Book . Real feral children are more like animals, as Steven Pinker points out, genes make up the blueprint for language, but the environment in which it is exacted and stored is what ensures that the language used is synchronized with the people of a common idiom. Even know we all are unique because of our genes, language is the combination between nature and nurture that helps makes us human. This tells us language is what separates humans from animals, which we already know, but it also tells us that through communicating with others we can become more educated about ourselves. The ability to educate about oneself is one of languages most powerful uses.