The power that lies in uniforms. From the Latin unus, one, and forma, form.
I saw a young girl walking to school with her mother. As they were walking they saw a young girl walking in their opposite direction. As they passed each other, the young girl walking with her mother turned and stared at this other young girl.
I was puzzled until I realised that they wore the same or at least similar school uniforms. They may not know each other but that young girl saw something that made her believe that they are somehow related.
This assured her that they belong somewhere, together.