Dia-noesis: A Journal of Philosophy April 2018 (5) Sacrifices, prayers: theurgic rites with metaphysical meanings to achieve the divine: a brief inquire on Book V of Iamblichus De Mysteriis Fernanda Lemos de Lima, Ass. Professor, Rio de Janeiro State University, Letras Clássicas e Orientais Department Introduction amblichus of Chalcis, an Assyrian philosopher whose school of Apamea spread the Platonic thought with contours of Egyptian, Assyrian and Babylonian theurgical knowledge between the III and IV centuries, is the author of a very robust work whose objective is the logical defense, by means of philosophical, theological and theurgical arguments and I