Craving occupies a pivotal position within the depth-psychology and addiction literature, functioning simultaneously as a phenomenological datum, a neurobiological construct, and a symbol of deeper existential longing. The corpus presents at least five competing theoretical models of its genesis — cognitive-labeling, outcome-expectancy, dual-affect, dynamic regulatory, and cognitive-processing — yet no single account commands consensus. Christina Grof situates craving as the symptomatic surface of a more archaic ‘thirst for wholeness,’ a spiritual hunger displaced onto substances, relationships, and material objects. Gabor Maté grounds this hunger in developmental trauma, arguing that the addicted mind perpetually enacts an early programming of scarcity. Neuroscientific voices, particularly Garland, Verdejo-Garcia, and Paulus, treat craving as emerging from the coupling and decoupling of interoceptive signals, attentional bias, and reward-prediction errors, with the anterior insula playing a mediating role. Mindfulness researchers such as Taylor and Brewer reframe craving as a trainable reinforcement-learning variable whose expected reward value can be systematically diminished. Easwaran’s Vedantic reading adds a further register: craving as desire that outlasts the body’s capacity to satisfy it, a structural irony inherent to desire itself. Across these registers, a central tension persists — whether craving is best understood as a discrete neurobiological state amenable to pharmacological or behavioral intervention, or as the phenomenal signature of an unmet need for self-transcendence.