<P> Phenomenology is not a unitary movement; rather, different authors share a common family resemblance but also with many significant differences . Gabriella Farina states: </P> <P> A unique and final definition of phenomenology is dangerous and perhaps even paradoxical as it lacks a thematic focus . In fact, it is not a doctrine, nor a philosophical school, but rather a style of thought, a method, an open and ever - renewed experience having different results, and this may disorient anyone wishing to define the meaning of phenomenology . </P> <P> Phenomenology, in Husserl's conception, is primarily concerned with the systematic reflection on and study of the structures of consciousness and the phenomena that appear in acts of consciousness . Phenomenology can be clearly differentiated from the Cartesian method of analysis which sees the world as objects, sets of objects, and objects acting and reacting upon one another . </P> <P> Husserl's conception of phenomenology has been criticized and developed not only by himself but also by students such as Edith Stein and Roman Ingarden, by hermeneutic philosophers such as Martin Heidegger, by existentialists such as Nicolai Hartmann, Gabriel Marcel, Maurice Merleau - Ponty, Jean - Paul Sartre, and by other philosophers such as Max Scheler, Paul Ricoeur, Jean - Luc Marion, Michel Henry, Emmanuel Levinas, Jacques Derrida, and sociologists Alfred Schütz and Eric Voegelin . </P>

What is the primary aim of philosophical phenomenology