Different perspectives
Although my intuition leads me to believe that there is, ultimately, only one reality -- infinite and eternal -- experience leads me to believe that there are as many views or perspectives of that reality as there are conscious creatures. It's the same principle with everything - each situation, event, conversation. We give different meanings, according to our belief systems, and how we are affected by the event. We all have our own realities. Anais Nin said: "We don't see things as they are, we see things as we are." Each of us has a different genetic inheritance, different health histories, different cultural backgrounds, different upbringings, unique individual experiences.
We look at situations, events, and interpret what other people say and do, according to our own set of past experiences, culture, faith, values, all of which help us form our beliefs about ourselves, about others, and about the world in general. The meaning we give events, the way we make sense of our world, is based upon our set of core beliefs. On the other hand, social identity is not fixed or permanent, but fluid and changeable. There's a more dynamic process in which social actors interact to construct cultural arrangements. The emphasis, simply, is on the ways which such cultural arrangements can change. After all, culture is generated through social interaction and the exchange of meanings and interpretations.
Seeing different perspectives will help to reduce distressing emotions, help yourself feel more confident, enable yourself to be more understanding and emphatic, and improve communication and relationships.
As you learn to challenge your unhelpful thoughts and biased perspectives, and see things in a more balanced and realistic way, so you will discover that situations and people can be different to how you usually interpret things, which can lead you to modify your core belief system, and therefore bring about lasting positive change.