 Clearly, the consequence of the immediacy of the divine act is the necessity of the series: only one caused element can derive directly from the absolutely unique Principle. Multiplicity is produced by mediation and the product of divine causality is divided between what is created directly (and is necessarily one) and what is created by way of mediation. With his emanative doctrine, Avicenna thus maintains the idea of the absolute causation of being and simultaneously establishes two distinct kinds of effects: those that correspond to the intermediate (mutawassiṭ), which is caused without mediation, and those that are like the last caused thing (maʿlūl), which is caused by virtue of the intermediate and is only an effect. In Avicenna’s emanative scheme, the first effects correspond to the celestial entities (and, strictly speaking, only to the first one, which is caused or “instaured” or absolutely created: al-mubdaʿ al-awwal); the following ones are, roughly speaking, all the effects (and, strictly speaking, the sublunary effects).