This article focuses on Novalis’ understanding of the ‘I-nature’ relationship demonstrating that he anticipates some aspects developed by later environmental and ecological philosophies. After an introductory part on Novalis’ criticism against Fichte’s conception of the Self, the article investigates the crucial role played by Spinoza for the reassessment of natural sciences (physiology in particular) in Novalis’ philosophy and, as a consequence, for the conception of a “metaphysics of Having”. This particular metaphysics implies that subjects and objects interpenetrate each other, and (...) that this relationship precedes their respective identities. In the last part, the article sketches a parallel with the current philosophical debate on ecology. (shrink)