Christian Lotz shows in this book that Husserl's Phenomenology and its key concept, subjectivity, is based on a concrete anthropological structure, such as self-affection and the bodily experience of the other. The analysis of the sensual sphere and the lived Body forces Husserl to an ongoing correction of his strong methodological assumptions. Subjectivity turns out to be an ambivalent phenomenon, as the subject is unable to fully present itself to itself, and therefore is forced to allow for a fundamental non-transparency in itself.