Abstract
This paper investigates the concept of étendue intelligible, as used by Malebranche to frame a metaphysical theory on top of the concept of space, a new perspective on ideas and a solution to Cartesian issues about the nature of thought and its relationships with extension. In particular, attention is paid to the reasons why the étendue intelligible is, for Malebrance, the joining link between the human mind and God. Such a connection is emphasized not only for its metaphysical meaning but also for the intrinsic relevance of a topological view of ideas.