An ideology is a set of idea

Idea

In the most narrow sense, an idea is just whatever is before the mind when one thinks. Very often, ideas are construed as representational images; i.e. images of some object. In other contexts, ideas are taken to be concepts, although abstract concepts do not necessarily appear as images...

s that constitutes one's goals, expectations, and actions

Action theory (philosophy)

Action theory is an area in philosophy concerned with theories about the processes causing willful human bodily movements of more or less complex kind. This area of thought has attracted the strong interest of philosophers ever since Aristotle's Nicomachean Ethics...

. An ideology can be thought of as a comprehensive vision, as a way of looking at things (compare worldview), as in common sense (see Ideology in everyday society below) and several philosophical tendencies (see Political ideologies), or a set of ideas proposed by the dominant class of a society to all members of this society (a "received consciousness" or product of socialization

Socialization

Socialization is a term used by sociologists, social psychologists, anthropologists, political scientists and educationalists to refer to the process of inheriting and disseminating norms, customs and ideologies...

).