Abstract
This article proposes an approach to understanding life that overcomes reductionist and dualist approaches. Kant’s analysis of the conditions of knowing an organism shows that attempts to explain its teleology and autopoiesis from the interactions of its components is problematic. Based on an analysis by Van de Vijver and colleagues, a co-constitutive relationship between the cognitive activities of the observer and the living features of the organism is described. Using the example of a developmental series, it is shown that within this active relational process, both autopoiesis and teleology of the organism manifest themselves on the mental level of the observer. The Kantian mode of objectification, which refers to the sensually perceptible appearance of an organism, can be supplemented by an active mode of relational objectification that encompasses the life of the organism. The analysis introduces a phenomenological first-person perspective on the study of life "from within", which enables an empirical investigation of the vital properties of an organism.