The concept of unity is an abstract concept that is used to designate everything that is uniformly, united and similar in the world. The idea of unity comes precisely from the term one, that is, a single thing, a single element. Thus, for example, the unity of matter becomes present when different parts come together to become something superior or more complex that encompasses them. In scientific terms, unity represents order, but in social terms, unity can often be understood as something negative if it is considered that unity represents the cancellation of what is different or distinct.
When we speak in scientific, biological, chemical, physical terms, etc., the unit represents the conjunction of elements that is carried out naturally or artificially in the face of different circumstances. Thus, for example, when several specimens of the same species of animal come together as a group (a flock of birds) they become something more complex, a unit since they all act and move together. A unity artificially achieved by the human being can be, for example, when several ingredients are put at the service of the preparation of a plate of food; Each element is different from the rest, but together they all become a unit, something new.
In the case of social phenomena, the idea of unity has two aspects, one positive and the other negative. In the same way as in science, the unit can represent a positive phenomenon when it represents order and joint work, for example when all the people in a company or a family act in an orderly and safe way, forming a unit and fulfilling each of the them their role. Social unity has to do with the idea of uniting all of us despite our differences for a common goal, for example, peace.
However, unity can also be negative when in certain forms of government, regimes or social and cultural conceptions, what is different or different is understood as something bad or dangerous that must be eliminated. This tends to the disappearance of the differences that make us who we are and that add us to a homogeneity in which none of us stands out for their own traits, achievements, characteristics, etc.