 Then, substance receives the form of corporeity, by means of which it becomes a body with dimensions and magnitude (DOS 246)—that is, matter gets extended and occupies space (DOS 340; NSLP 8, 55). This matter is BPM and is common to both celestial and terrestrial bodies. Regarding BPM, it is necessary that there be one matter that is the substrate of substantial change in the case of terrestrial bodies; or circular motion in the case of celestial bodies. This matter is the corporeal substance, that is, substance plus the form of corporeity (DOS 244–245). When something looses a substantial form, it is not annihilated but remains at least with dimensions and the form of corporeity (E 1, 21), as when a dead body is reduced to its state of being a mere aggregate of its components indicating its composition (cimbolum sue mixcionis) (E 5, 40; DOS 244). Finally, matter receives the specific differences of bodies and the passive and active qualities (DOS 248). This is PPM, the matter common to all simple and mixed bodies in the sublunary sphere, that is, those that are generable and corruptible.