This paper attempts to explore the Buddhist explanation of the origin of suffering through a comprehensive analysis of craving (taṇhā), ignorance (avijjā) and the phenomenology of sensation (vedanā) as developed in the Sammaditthi Sutta and the doctrine of dependent origination (paṭiccasamuppāda). While traditional interpretations often frame Buddhism as metaphysical or ethical, this study emphasizes the Buddha’s radical shift toward experiential phenomenology arguing that he located the ‘world’ not in external objects but in the sixfold field of sensations arising from contact. Through this lens reality is understood as the moment-to-moment arising and cessation of sensory experiences visual, auditory, olfactory, gustatory, tactile and mental rather than a stable external environment or metaphysical domain. The paper demonstrates how craving in its three forms sensual desire (kāma-taṇhā), craving for existence (bhava-taṇhā) and craving for non-existence (vibhava-taṇhā) operates as the most immediate cause of suffering while ignorance functions as the deeper, sustaining root. Drawing on the Buddha’s analysis of greed, hatred, delusion etc. in the Sammaditthi Sutta, this paper shows how wrong view transforms neutral sensations into the fuel for attachment, aversion and ceaseless seeking. By contrast, right view (sammā-diṭṭhi) reveals sensations as impermanent, ownerless, not-self thus interrupting the chain of dependent origination at the critical link between feeling and craving. This paper argues that the Buddha’s insight presents a complete psychological system in which suffering arises internally rather than from external conditions. This phenomenological reconstruction of early Buddhist thought not only clarifies ancient doctrine but also provides a conceptual bridge to modern cognitive science, affect theory and therapeutic mindfulness. Ultimately, the article concludes that liberation becomes possible when one understands experience as sensation-based and recognizes craving and ignorance as mind-made processes that can be transformed through wisdom.