Language is more than a means of communication. It is used all over the world and every single minute. Not only when we talk, read, and write even when we socialize, we drive, we trade everywhere we use language in one form or other. Every aspect of our life involves language.
By definition, language is, "a body of words, symbols, signs, sounds, gestures, and the systems for their use common to people who are of the same community, nation or same cultural tradition"
The language also plays an important role in the development of a person personality, because communication is the one which drives our lives and makes ourselves better. Basically, language distinguishes humans from other animal species.