In literature, the term "liminal" is employed to evoke states of transition or thresholds, particularly within human consciousness and perception. It is used to describe phenomena that exist on the cusp between the evident and the obscure, such as the fragmentary, near-automatic ideas that hover at the periphery of awareness [1] and the barely discernible presentations that accompany more fully illuminated perceptions [2]. The word also appears in technical contexts to denote measurable intensities in transitional conditions—illustrated by its application to changes in sleep where liminal intensity is heightened [3]—as well as to characterize altered mental conditions wherein the mind is affected by these boundary experiences [4]. Additionally, it plays a role in conceptual frameworks that reconcile disparate layers of consciousness, linking the more immediate with the subliminal [5, 6].