Belonging

A person always needs to feel they belong. Belong to what exactly though? More specifically, if a person belongs to a group, is it possible to equally belong to numerous groups?
Being caught between groups is not something you would want to experience.
The general world has grown harsh. Hearts of cold cobblestone prosper, it seems so anyway.
Or maybe I just expect too much. People are not like yourself. They are from a different dimension, so it seems. Survival of the fittest- ignorance- so it seems...