This paper aims to question the relationship between mind and body in Spinoza. In order to address this topic, Moreau examines the role of the body in the 17th century, as physical body, living body and political body. This preliminary analysis firstly allows us to reconstruct the framework in which the Spinoza’s reflections take place and, secondly, to deal with the apparent contradictions in his Ethics. The body, a mode of extension, influences – though without causality – all of the aspects of the human mind, from the common notions to beatitudo. Using Spinoza, therefore, it is possible, to consider a new interpretative paradigm which will allow us to review the role of the mind by starting from the body, following the path that leads man from bondage to liberation.