 According to the scientific view of the universe in his day which he studied in the curriculum—Aristotelian sublunar world with Ptolemaic cosmology and Neoplatonic emanationism in the supralunar—all intelligibles (all universal concepts and the principles of all particulars, or as Avicenna says, “the forms of things as they are in themselves”) were the eternal object of thought by the First principle, and then, in descending hierarchical order, by the intellects of the celestial spheres emanating from the First and ending with the active intellect (al-ʿaql al-faʿʿāl), the intellect of the terrestrial realm. Avicenna’s identification of hitting upon the middle term as the central element in logical analysis on the one hand established that the syllogistic structure of all knowledge is also as it is thought by the celestial intellects, and on the other enabled Avicenna to unify and integrate the different levels of its acquisition by the human intellect within a single explanatory model. As a result, he succeeded in de-mystifying concepts like inspiration, enthusiasm, mystical vision, and prophetic revelation, explaining all as natural functions of the rational soul. At the basic level there is discursive thinking in which the intellect proceeds to construct syllogisms step by step with the aid of the internal and external senses, and acquires the intelligibles by hitting upon the middle terms (something which in emanationist terms—but also, though less conspicuously, Aristotelian—is described as coming into “contact” with the active intellect, to be discussed further below, note 6). At a higher level, Avicenna analyzed non-discursive thinking, which takes no time and grasps its object in a single act of intellection, though the knowledge acquired is still structured syllogistically, complete with middle terms (because in its locus, the active intellect, it is so structured) (Adamson 2004). Avicenna also discussed a facility for or habituation with intellection, which he called direct vision or experience (mushāhada) of the intelligibles. It comes about after prolonged engagement with intellective techniques through syllogistic means until the human intellect is not obstructed by the internal or external senses and has acquired a certain familiarity or “intimacy” with its object, “without, however, the middle term ceasing to be present.” This kind of intellection is accompanied by an emotive state of joy and pleasure (Gutas 2006a,b). The highest level of intellection is that of the prophet, who, on account of his supremely developed ability to hit upon middle terms, acquires the intelligibles “either at once or nearly so … in an order which includes the middle terms” (GS 6, 273–274; transl. Gutas 2014a, 184).