Language Arts-Identity

Identity is mean to symbolize person, let everyone can know you very much. And everything have their identity. Like H.I.S identity is " Everyone has their own computer, and in H.I.S are not like in local school, because in H.I.S, everyone likes a family, and we all speak English, not like in local school, Local school is like a jail, and then people who speak Chinese and bad words. So like every school has their own identity, and this identity can let another school or person knows that our school is different than the other school.
And My identity is" I don't believe any religion, and I am from Taiwan, I like to play music and read, not study, and I don't like to study ,but I still do my homework on time, so in this few sentence, I can let other people knows what kind of person am I like.
And why is identity so important?

Because identity can let people knows that things or person's impressions.