The word paradigm comes from the Greek. It was originally a scientific term, and is more commonly used today to mean a model or theory. In the more general sense, it's the way we "see" the world--not in terms of our visual sense of sight, but in terms of perceiving, understanding, and interpreting.
A simple way to understand paradigms is to see them as maps. We all know that "the map is not the territory." A map is simply an explanation of certain aspects of the territory. That's exactly what a paradigm is. It is a theory, an explanation, or model of something else. You can never arrive at a specific location in a new city with a wrong map.
Each of us has many maps in our head, which can be divided into two main categories: maps of the way things are, or realities, and maps of the way things should be, or values. We interpret every thing we experience through these mental maps. We seldom question their accuracy; we're usually even unaware that we have them. We simply assume that the way we see things is the way they really are or the way they should be. And our attitudes and behaviors grow out of those assumptions. The way we see things is the source of the way we think and the way we act.
We see the world, not as it is, but as we are--or, as we are conditioned to see it. Clear headed people see things differently, each looking through the unique lens of experience. But this does not mean that there are no facts. Instead, each person's interpretation of these facts represents prior experiences.
The more aware we are of our basic paradigms, maps, or assumptions, and the extent to which we have been influenced by our experience, the more we can take responsibility for those paradigms, examine them, test them against reality, listen to others and be open to their perceptions, thereby getting a larger picture and a far more objective view.
