ABSTRACT
In this chapter, the author mainly relays on a Kleinian frame of reference and some concepts of Bion. This play of lights and shadows in the quality of the internal objects acquires an almost tangible dimension in the description of the internal world and of the internal space which is central in the work of Klein. The existence of the internal space was implicitly present in the work of Sigmund Freud: he spoke about the shadow of the object; this internal object must occupy an internal space. The author begins with a description of introjective processes that is more related to the play of lights than to the play of shadows. He talks about introjective processes which facilitate development. The author focuses on particular types of introjective processes which create an obstacle to development and may bring about the introjection of an object performing a function which is the obverse of alpha function.
