Social action aims to bring about structural changes through mobilizing masses. It focuses on preventing harmful changes and improving mass conditions. The goals of social action include preventing needs, solving mass problems, influencing policies, and redistributing power and resources more equitably. Effective social action is built on principles like credibility building, legitimization, dramatization, using multiple strategies including educational, persuasive, facilitative and power approaches, adopting a dual approach of building counter-systems while mobilizing public support, and implementing a variety of economic, social and political programs.