It helps people relate to others how they feel and to what degree or
intensity they fell those emotions. It also allows people to express
praise, to ask for help, and to display discomfort.
Language can be as harmful as it is helpful. Language is as
useful as the mastery behind it. It is infinitely easier to communicate
with another if both have mastered the language they are speaking. But
even then, language has it's problems. We communicate in spoken
language, body language and often times will communicate in unsaid
ways. Often times it is more important to understand what was not said,
then what was said. The more critical the thinking, the better the
chance of successful communication.
Physical location of the peoples who speak a language also has a
great impact upon both the language and the daily life of the people
who speak it.
The are many words used to describe frozen states of water in
Inuit, but nothing to describe many grains of sand. Desert peoples may
have many phrases for types of sand but need to borrow words from other
languages to describe ice.
Language can be used to express perceptions, thoughts and
feelings. Some languages are more rich in descriptive phrases than
others. Also some concepts (like owning land or warfare) cannot be
expressed in some languages.