Phenomenological description can be interpreted as an explicitation of experience as it is lived. However, there are at least two ways in which the explicitation of experience can be realised: the first is associated with an epistemic model, the second to an ontological model. The first is based on a principle of manifestation, the second on a principle of disposition. The aim of this paper is to show that only the second model, the ontological one, is able to account for the concept of movement understood not as mere displacement but as change. In order to do this, however, it is necessary to introduce a notion that classical phenomenology – starting from the well-known Brentanian definition – considers to be oxymoronic: the notion of physical intentionality.