Extended Abstract
Objective
This study aims to explore the rational, ethical, and balanced relationship between religion and politics as articulated in Baruch Spinoza's political philosophy, addressing the central question of how a harmonious interplay between the two domains can be established so as to prevent either confrontation or the domination of one over the other. The hypothesis posits that Spinoza's model, which relies on an institutional separation of religion and politics alongside an emphasis on rationality and morality, positions religion in the service of public virtue while grounding politics in the rational contracts of citizens.

Introduction
In the history of modern political thought, the interplay between religion and politics remains a contentious issue. Spinoza, a pivotal rationalist thinker of the early modern era, critiques traditional entanglements by advocating for a secular, rational state. Drawing from his key works, particularly the Theological-Political Treatise, this article examines Spinoza's foundational commitments to the unity of being, natural rationality, and individual ethics, highlighting his efforts to detach religion from political authority and realign it with human dignity and peace.

Methodology
Employing a qualitative, theoretical, and foundational-analytical approach, this research utilizes conceptual-interpretive analysis and hermeneutic methods to dissect Spinoza's texts within their respective historical and discursive contexts. A comparative-critical framework is adopted to contrast Spinoza's ideas with those of classical and modern thinkers, including Descartes, Locke, Rousseau, Kant, as well as contemporary Iranian scholars such as Seyed Javad Tabatabai. The analysis is structured around four principal axes: the historical and epistemological emergence of Spinoza's thought, the conception of religion in opposition to Cartesian dualism, the theory of a rational and secular state, and Spinoza's influence on Enlightenment thought, democracy, and pluralist politics.

Findings
Spinoza's philosophy reveals a systematic separation of religion from politics, wherein religion functions as an ethical tool for justice and love while politics derives its legitimacy from rational consent rather than divine authority. Rejecting Cartesian dualism, Spinoza posits a monistic ontology in which religion fosters moral virtue without encroaching on state sovereignty. His ideas profoundly influenced Enlightenment radicalism, modern democratic theories, and pluralist politics, offering a sustained critique of superstition, fundamentalism, and ideological domination while actively promoting freedom of thought and secular governance.


Conclusion
Despite the passage of more than three centuries, Spinoza's thought retains considerable theoretical and practical relevance for contemporary societies grappling with religious fundamentalism, crises of political legitimacy, and persistent tensions between tradition and modernity. By advocating for a rational secularism and an ethical integration of religion and politics, his model offers a viable framework for fostering peaceful coexistence between the two domains, with a sustained emphasis on public virtue, individual freedom, and democratic pluralism.