The interpretation of the individual as atomic or self-contained constitutes a dominant trend in Spinoza scholarship. One of the implications of that trend is the focus on reason as the primary expression of individual power and as the key to ethical progress. In this thesis I argue, against this reading, that Spinoza’s philosophy is illuminated by a perspective that focuses on relationality as the locus of individuation. Following that line of inquiry, I demonstrate how imaginary and rational transindividual systems of knowledge engender different forms of individuality and sociability, and how the transition from passion to action can be described as a process in which corporeal and intellectual interactions play a decisive role. With a s...