The term theodicy was coined by the philosopher Gottfried Wilhelm Leibniz (1646-1716) and is inherent in the question of how evil can exist if an intrinsically good God guides everything. The publication of this oeuvre initiated intense philosophical and theological discourse in the subsequent centuries, during which many issues that bare upon human well-being were articulated. Also, Leibniz’s rational approach to the relationship between God and evil raised a number of issues related to the topic of belief. This topic has entangled discourses on theodicy with a long-lasting debate on beliefs, which goes back to Antiquity. Recently, a paradigm-shift shed new light on the understanding of belief. Science has begun to address the neurophysiological mechanisms of the processes that underpin belief formation, modulation, and change. The term credition was coined in order to capture and reflect this new and innovative understanding of the fluidity of beliefs and believing. This paper presents various features of a pattern of interrelationships between well-being, theodicy, and credition.