Thoughts and Prayers from a Glowing Rectangle explores how technological mediation can be reoriented from instruments of surveillance and erasure toward sites of communal ritual, cultural memory, and collective presence. Developed during a Fall 2024 residency at Drew University, the project unfloded through a series of interdisciplinary workshops engaging students and community members. Participants contributed objects of personal significance related to experiences of loss, which were digitally captured through 3D scanning and integrated into a spatial installation alongside motion-captured gestures, projection-based interventions, and other cross-media contributions from disciplines including Digital Media, Animation, Choreography, and Music. By mobilizing computational and immersive techniques within a framework of participatory ritual, the project repositions technological mediation as a vehicle for collective presence, relational aesthetics, and resistance to cultural erasure.