Secularism has long been viewed as integral to modernization due to its connection with the Enlightenment. The broad secularization thesis suggests that as societies modernized, the influence of religious institutions and beliefs gradually diminished.
This does not, however, imply that people abandoned religious belief or that atheism became dominant. Instead, it signifies a reconfiguration of religion’s role, from a central institution in governance to a more private or personal matter for many individuals.
Sociological research has shown that religion remains a potent force even in modern societies. It continues to provide individuals with meaning, emphasizing the notion that humans do not live by bread alone.
This phrase critiques materialism and highlights humanity’s inherent need for purpose and fulfilment, something that religion has historically supplied.
Several sociologists have underscored the functional role of religion in society, emphasizing that it meets important psychological and social needs. The central tenet of secularism is the separation of state and religion.
While religion remains deeply embedded in society, the state must operate according to principles of neutrality, ensuring that religious beliefs do not shape public policy. This is the essence of secularism.
But how well does this separation work in practice? Consider the United States, where the notion of secularism is enshrined in the Constitution, but the role of religion remains evident in public life.
For example, at Donald Trump's presidential inauguration on January 20, 2025, religion played a visible role, from the incoming president’s visit to church in the morning to the benediction at the ceremony.
These rituals signal the ongoing relevance of religion in US public life, despite constitutional guarantees of secular governance.
While the First Amendment of the US Constitution mandates the separation of church and state, the national motto, “In God We Trust,” is printed on US currency, indicating that religion still plays a symbolic role in public culture. Is this a contradiction?
We invoke sociologist Robert Bellah's concept of civil religion to explain this paradox.
In civil religion, religious symbols, rather than specific doctrines, function to reinforce national identity and public values. Thus, religion can still influence public life in symbolic or cultural ways.
The idea that secularism is uniquely “Western” and therefore irrelevant to non-Western societies has been challenged by thinkers like Amartya Sen. He argues that secularism is not a Western invention but a universal concept that promotes peaceful coexistence in pluralistic societies.
To reject secularism on the grounds of cultural relativism would imply rejecting democracy itself, since democratic principles too originated in the West but are now widely embraced globally.
Secularism is crucial for the functioning of democracy, and this argument can be supported by the ideas of John Locke and Jürgen Habermas.
John Locke, in his “Letter Concerning Toleration” (1689), advanced the idea that religious tolerance is a fundamental component of individual liberty, which in turn is the cornerstone of democracy.
Locke argued that a just government should not impose religious beliefs on its citizens, as doing so would violate their natural right to freedom of conscience.
In a democratic society, governance must be based on the equal participation of all citizens, regardless of their religious affiliation. Secularism guarantees that no single religious worldview dominates, ensuring the freedom of individuals to practice their own faith or lack thereof without fear of state interference.
This fosters pluralism, allowing democracy to flourish in a society where diverse beliefs coexist peacefully.
For Locke, the state's role is to protect life, liberty, and property, not to enforce religious orthodoxy.
Jürgen Habermas emphasizes the importance of public reason in democratic societies. According to Habermas, democratic discourse requires a public sphere where citizens can engage in rational debate, making decisions based on reasons that are universally accessible, irrespective of religious commitments.
In this context, secularism is essential because it ensures that political decisions are justified through rational, common-ground arguments, rather than religious doctrine. For democracy to function properly, the public sphere must be secular, ensuring that no particular religious viewpoint is privileged in political decision-making.
Secularism as a guard against authoritarianism
Both Locke and Habermas recognize the danger of intertwining religion with politics, which can lead to authoritarianism. Locke’s principle of separating church and state was designed to prevent religious authorities from wielding political power, which could undermine individual liberties and democracy.
Similarly, Habermas argues that secularism serves as a safeguard against the manipulation of politics by religious ideologies that might seek to impose one particular vision of the good life on all citizens.
Secularism, therefore, is not just a theoretical concept -- it is an institutional framework that protects democracy by ensuring that political power is not concentrated in the hands of religious elites.
Following Habermas it can be argued that the secular state ensures that political decisions are based on inclusive, rational dialogue, not on the authority of religious institutions.
This institutional separation prevents the state from becoming a tool for religious control, allowing democracy to thrive in a diverse society.
Secularism is essential for democracy because it guarantees individual freedoms, facilitates rational political discourse, and protects against the concentration of power in religious institutions.
Drawing on the ideas of John Locke and Jürgen Habermas, we see that secularism is not a luxury or a Western innovation but a necessary framework for ensuring that democratic societies remain free, inclusive, and just.
In a democracy, where diverse beliefs must coexist, secularism provides the essential guardrail between the religious and the political, allowing both spheres to function without infringing on each other’s autonomy.
Habibul Haque Khondker is a sociologist and columnist.
