Material worship involves the use of material or physical tokens (synthemata), symbols and other offerings to raise ourselves to the encosmic divine intelligible and tertiary causes, such as archons and Daimons. This kind of theurgy is the type most commonly practiced. This form of theurgy introduces us to the Gods.
Dunn, Patrick. The Practical Art of Divine Magic: Contemporary & Ancient Techniques of Theurgy. Woodbury, MN: Llewellyn Publications, 2015.
Ekklesia Neoplatonismos Theourgia. “Ekklesia Neoplatonismos Theourgia Catechism.” Ekklesia Neoplatonismos Theourgia. Accessed July 17, 2017. http://theourgia.org/catechism/.
Kupperman, Jeffrey S. Living theurgy: a course in Iamblichus philosophy, theology and theurgy. London: Avalonia, 2014.
Shaw, Gregory. Theurgy and the soul: the Neoplatonism of Iamblichus. Second ed. Kettering, OH: Angelico Press, 2014.