Ideology is a set of beliefs that guides how people think, feel and act. It is like a map or a plan that people use to understand the world around them and to make decisions about how to live their lives. There are many different kinds of ideologies, including religious, political and social. For example, some people believe that all people should be treated equally, so they follow an ideology of equality. Other people might believe that all people should have the same amount of power, so they follow an ideology of democracy. No matter what ideology people follow, they use it to guide their behavior and opinions.