Antonio Gramsci's concept of 'hegemony' is a cornerstone of critical theory, offering a nuanced understanding of how power is maintained in society, moving beyond a purely coercive model. Gramsci argued that the dominance of a ruling class (or 'hegemonic bloc') is not solely based on physical force or economic control, but primarily on its ability to organize and secure the consent of the subordinate classes. This consent is achieved through the dissemination of its worldview, values, and norms, making them appear as 'common sense' or universally valid.

Gramsci distinguished between two forms of political control: 'domination' (coercion by the state, police, military) and 'hegemony' (leadership based on consent). While domination is visible and direct, hegemony operates more subtly through the institutions of 'civil society' – such as schools, churches, media, trade unions, and cultural organizations. These institutions play a crucial role in shaping public opinion, moral values, and intellectual discourse, thereby legitimizing the existing social order and the ruling class's position within it.

For Gramsci, the ruling class achieves hegemony by presenting its particular interests as the general interests of society. It constructs a 'historical bloc' by forging alliances with other social groups and incorporating their demands, thus creating a broad consensus that supports its leadership. This process involves intellectual and moral leadership, where 'organic intellectuals' (intellectuals who emerge from and represent the interests of a particular class) play a vital role in articulating and disseminating the hegemonic ideology.

However, consent is not passive or absolute. It is constantly negotiated, challenged, and re-secured. Subordinate groups can develop 'counter-hegemonic' ideas and practices, challenging the dominant 'common sense' and potentially leading to a 'crisis of hegemony.' Gramsci's theory thus highlights the dynamic and contested nature of power, emphasizing the ideological and cultural struggles that underpin political stability. His insights remain highly relevant for understanding how dominant narratives are constructed and maintained, and how social change can occur through intellectual and cultural transformation, not just economic or political revolution.