Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Mîs-pî, inscribed KA-LUḪ.Ù.DA and meaning “washing of the mouth,” is an ancient Mesopotamian ritual and incantation series for the cultic induction or vivification of a newly manufactured divine idol. It involved around eleven stages: in the city, countryside and temple, the workshop, a procession to the river, then beside the river bank, a procession to the orchard, in reed huts and tents in the circle of the orchard, to the gate of the temple, the niche of the sanctuary and finally, at the quay of the Apsû, accompanied by invocations to the nine great gods, the nine patron gods of craftsmen, and assorted astrological bodies.
The ritual
The extant corpus of tablets comprising mîs-pî consist of two ritual accounts, one late Babylonian and one earlier Assyrian, together with several Sumerian incantations to be recited at the various stages of the ritual, recovered from a wide distribution of find spots. These date from the eighth to the fifth centuries BC and are thought to have been arranged on 6 or 8 tablets. Although these texts are from the first millennium BC, a reference to a ritual of the opening of the mouth of a statue of the deified statue of Gudea may represent an earlier recension, and mouth-washing is mentioned during the middle Babylonian period.
The rituals are for the consecration of a cultic image, a statue formed from a wooden core encased in gold and/or silver, decorated with inlaid precious stones, and dressed in robes. They involve the “washing of the mouth” (mîs-pî proper) on the first day to cleanse the statue of all traces of human contamination in the production of the idol, and the “opening of the mouth” (inscribed KA.DUḪ.Ù.DA, Akkadian: pit pî) performed with syrup, ghee, cedar and cypress on the second to bring it to life, sacraments which may be related to the pit uzni, “ear-opening” ceremony. “On this day be present: for this statue which stands before you ceremoniously grant him the destiny that his mouth may eat, that his ears might hear.” The rituals facilitated the idol taking on the persona of the deity, awakening the supernatural force within it, and enabling it to see, act, eat and drink the offerings and smell the incense: ṣalmu annû ina la pīt pî qutrinna ul iṣṣin akala ul ikkal mêul išatti, “this statue cannot smell incense without the “Opening of the Mouth” ceremony, it cannot eat food nor drink water.”
Four exemplars from Hellenic Uruk do not include the pit pî stage, but instead introduce a burnt offering of a brushwood fire, lamentations recited by a kalû-priest and the presence of the monarch. Its application seems to have spread to encompass other objects, such as a ceremonial torch, the hide of a bull which is to cover a lilissu- or kettledrum, the apotropaic figurines used in the Šēp lemutti ritual, the divinatory bag of the barû-priest, the mouth of the river to abate its torrent, and even the jewels adorning a king's chariot. It seems that the process of mouth-washing was intended to prepare a person or thing for contact with the divine.
Erica Reiner (1995). Astral Magic in Babylonia. American Philosophical Society. pp. 139–140.
M. S. Smith (2005). "The Polemic of Biblical Monotheism". In T. L. Hettema, A. van der Kooij (ed.). Religious Polemics in Context: Papers Presented to the Second International. Brill Academic Publishers. pp. 214–216.
^ C. B. F. Walker, M. B. Dick (2001). The Induction of the Cult Image: The Mesopotamian Mīs Pî Ritual. The Neo-Assyrian Text Corpus Project. pp. 149, 151.
Marilyn J. Lundberg (2007). "The Mis-Pi Rituals and Incantations and Jeremiah 10: 1–16". In John Goldingay (ed.). Uprooting and Planting: Essays on Jeremiah for Leslie Allen. T & T Clark International. p. 211.
M. J. H. Linssen (2003). The Cults of Uruk and Babylon: The Temple Ritual Texts as Evidence for Hellenistic Cult Practice. Brill Academic Publishers. pp. 153–154.
Michael B. Dick (2005). "Pīt pī und Mīs pī". Reallexikon der Assyriologie und Vorderasiatischen Archäologie, Volume 10. Walter de Gruyer. pp. 580–582.
The remedies for all similar diseases, completely, All of the symptoms of diseases, The prescriptions relating to the diseases of women. * Until the time when, having become a Master of the entire Art of Magic, you possess the secret. After which you will learn to hear and interpret the commentaries as well as the list of correspondences, and to practice the rituals in both Sumerian and Akkadian.
And also to reason and debate in order to reach a consensus
41–43
Upon the one who is vigorous, wise, and penetrating to Great Knowledge, the Two Gods, the Lords (Ea and Marduk), will confer Vast Understanding. Unto this one these Gods will grant a Guardian Angel, whose name will be pronounced unto the Most Distant Times. Copied and collated with a most ancient copy. A tablet belonging to Kisir-Nabu, son of Šamaš-ibni, magician of the Ešara.