How does language reflect culture?
Anyone learning a new language has to learn the frame of reference for meaning and thought that go with that language. The parameters, patterns and structures which enable us to make sense in our home culture may keep us from making sense in our new host culture.
Each culture has a different set of parameters and guidelines for thought. Learning the language of the local culture helps mold our thought patterns into the "proper" thinking expected and required in the new culture. The language gives a unique internal insight into the thought-world of the people who speak that language. This thought-world is the realm in which concepts are set and decisions are made.
Language and culture are related, because language is used to express ones views and this helps one express the worldwide of the society, of course people have differeny worldviews that result from multiple languages.