Co-evaluation of Spinoza and Berkeley, however, who have taken the “tension” that had determined the direction of philosophy at the deepest level in the early modern period, is essential to realize a crucial problem, which is about opening -and naturally, branching- pathways where philosophy and religion come across by answering the question “How -or according to which principles- should one live?”. In this essay, I claim that the (most) crucial philosophical interventions to the crisis at the crossroads of religion, science, and philosophy in the early modern period were made by Spinoza and Berkeley, throughout their “war of position”. Therefore, first, I will focus on Spinoza’s manoeuvre to disclose his pathway in the light of popular philosophical concepts of early modern philosophy. The intervention here, in Spinoza’s words Deus, sive Natura, is an expression of a “transformation” and the concept of “Extensio” is central to that. Then, I will look at Berkeley’s philosophical intervention, formulated in esse est percipi, which amounts to “changing ‘idea’s into ‘thing’s” by dealing with the concept of “matter”, as a topic of early modern philosophy. Finally, I will point out the tension between religion, science, and philosophy, as the characteristic tension in the era, and how these two interventions are related to each other and to this tension, by confining myself to the texts of these philosophers.