In this paper, the author explores the development and influence of the language of physicalism on the understanding of the mind and body problem. Firstly, we will address the early development and, later, the transformation of physicalism from a language methodology to a metaphysical theory, which will receive its final form in the philosophy of mind. The chapter will be concluded with a short review of the identity theory, and consequently, the question about the legitimacy of the identification of philosophical and scientific concepts will arise. Afterwards, in the second chapter, the author will use the so-called problem picture in order to provide a conceptual analysis of the language of physicalism. That way, we will demonstrate how the transformation of crucial philosophical notions emerges from a wider linguistic and contextual background. In this case, philosophical concepts, or language, are influenced by the metaphysics of scientism. Finally, instead of a summary, the last chapter will provide a short sketch of the ontogrammatical method, whose task is to shed light upon ontological transformations via conceptual and linguistic analysis.
