Here we can take Human Being as a class. A class is a blueprint for any functional entity which defines its properties and its functions. Like Human Being, having body parts, and performing various actions.
My name is Abhay, and I am an instance/object of class Male. When we say, Human Being, Male or Female, we just mean a kind, you, your friend,me we are the forms of these classes. We have a physical existence while a class is just a logical definition. We are the objects.