The purpose of this article is to analyze the assumptions and implications of Roman Ingarden’s concept of consciousness as a relatively isolated system in the context of contemporary discussions on mechanistic model of scientific explanation. Starting with a presentation of Ingarden’s position, I try to show that the key problem of the theory of consciousness is the discovery of its neurobiological mechanisms. The systemic approach proposed by Ingarden is only the first step towards a theory that integrates the phenomenology of consciousness and a mechanistic framework. The next step is to show that research on the mechanisms of consciousness is a natural extension and deepening of the systemic approach.