The multiplicity is part of the overall re-scanning of matter material and form. Form as we know is limited to the visible biological as well molecular structures which compose it. It was Artaud indeed who from first hand experience mapped out these treacherous and dangerous areas. He iterates indeed that his work really is considering the problems of matter as well as the assemblages which constitute a space for desire and persons. The four lines which run through the strata are varied in quality, direction scope and intensity.
Desire works along the lines and it is the last one which is the line of flight.
It is the line of flight which creates the explosions which result in the schizophrenic person's experience of delirium. Marx laughs under the face of Spinoza under the mask of Nietzsche under the mask of Artaud to paraphrase Foucault's commentary on Deleuze. I see it as the Mutiple which has taken the place of the traditional dualism of the One and Many. In Antioedipus and in Deleuze's book about Proust there is a discussion of this. Thus Deleuze's interest in the Stoics and others.