Readiness occupies a pivotal position in the depth-psychology and clinical-change literature, functioning simultaneously as a measurable intake variable, a dynamic process marker, and a phenomenological threshold. The term ramifies across at least three distinct registers. In motivational-interviewing discourse (Miller), readiness designates the tipping point at which preparatory change talk gives way to mobilizing change talk — commitment, activation, and concrete steps — and counselors are warned against projecting premature readiness onto clients lest nascent motivation collapse under pressure. In addiction-treatment research (Simpson, Bettmann, De Leon), readiness for treatment is operationalized as a discrete, sequentially staged construct measurable via instruments such as the URICA, distinguishable from mere motivation, and linked empirically to engagement and retention outcomes, though wilderness-therapy data complicate this by showing that readiness scores alone do not reliably predict symptom reduction. A third, more neurological register appears in Flores and Flores-via-addiction-as-attachment: ‘neurological readiness’ refers to the restoration of cortical functioning in recovering alcoholics, setting the precondition for insight-oriented work. Freud’s concept of ‘anxious readiness’ adds yet another layer — readiness as a protective anticipatory state that, when well-calibrated, forestalls the more disorganizing development of full anxiety. McGilchrist’s treatment of the Libet readiness potential interrogates whether neural readiness is causative or merely correlative. Across these registers a common tension persists: readiness as prerequisite versus readiness as outcome.