There is no need to explain how important it is today to know foreign languages. Communication has never been an easy thing, even between the people who have an enormous background of shared values and experience. Even if you are talking directly and clearly to them, they may not be hearing you. Misunderstanding is often caused by misinterpreting. Even if you know the words, and phrases, and grammar, and prepositions, sometimes “it does not ring the bell”. Without knowing the background, the people’s history and culture, their humor and their patterns of values, you will unlikely bring your idea to the opposite mind. Learn the roots, the nation’s mentality, way of life. The in-depth study of the nation of the language you study will contribute tremendously to your communication with people.