SATAN, THE EVIL ONE, ULTIMATE AND UNRIVALED IN HIS MALEVOLENCE
Satan, the evil one, ultimate and unrivaled in his malevolence - personification of a perfect hatred - lord of this world. “...for he puts his beasts to evil use”, not only in the arena of that which constitutes this hellish earth itself and therefore the theater of real-world evil but also in the black land of the mind, where self-concept may be distorted and manipulated according to agendas preset and harmful and, from that harm, where alters may arise.
Confrontation with the undead - when all hope passes beyond reach, when foreknowledge of a complete and utter possession by the ultra-violent lords of evil indicates to the neonate that the bloody threshold has been crossed, point of no return, and burning upon a now not so distant horizon the death of self and mortal life - transference then to undeath and there life everlasting.
In the children’s game “Bloody Mary” a child shuts themselves in a room earmarked for bathing and disposal of waste (a liminal space), without light and in darkness, spinning three times while reciting the name given and then gazing into the mirror where the visage of the infamous monarch will appear. So too the undead will appear in the black mirror dedicant to scrying and communion - and for those fanatic and selected for possession by the undead they will come through - then transformation, breakthrough.
Notes:
“Selena’s head spun with confusion. She stood with the knife poised. She closed her eyes, trying to make sense of where she was. As if guided by someone else, her hand came down. She saw the pink flesh, the soft hair, the eyes open in startled accusation. Then she saw the dark red, warm, flowing blood. An awesome internal scream pierced the mind noise to make its mark of evil on Jenny’s soul.” - Judith Spencer, Suffer the Child
“Dark mothers horrifying in their countenance, cruel and wicked in their intent once accessed only by black pilgrimage to hidden shrines in remote wilderness or through secret interdimensional portals through methods most occult now cast their withering gaze upon all humanity from vantage points in hideous Astral Sky - all shall be disciplined, all subject to their horrifying will. None shall deny them. Dark forces ungovernable cannot be governed. No spell will keep them out. ‘Every knee shall bow, every tongue confess’ in the series of events leading irrevocably toward the Final Harvest”. - Drums of Tophet Vol.1 Issue 1, Ghastly Spectres Coming Forth by Night



Bloody Mary is known to take your soul for her own, ripping yours to shreds in the process of her becoming. "The undead will possess the physical body, killing it through predatory intent and due to the sheer violence of demonic possession and then having penetrated the earthly vessel taken complete control they will reanimate it - this the state of Undeath attained." (Sword of Undeath) Legends almost always rooted in historical truth.
I first heard of that ritual from Scary Stories to Tell in The Dark.
I like to use forms that include more mainstream reference to connect people to the dark mind I connect to.