The concept of demons has persisted across cultures and epochs, often embodying fear, chaos, or moral struggle. In the context of a modern, integrative worldview—termed “2.0 Philosophy”—demons are reinterpreted as multifaceted phenomena that encompass psychological, symbolic, and metaphysical dimensions. This paper explores how demons can be understood within 2.0 Philosophy, a framework that synthesizes scientific rigor, psychological insight, spiritual wisdom, and practical application. By examining demons as internal conflicts, archetypal symbols, and potential metaphysical entities, this paper provides a holistic understanding of their role in human experience and offers actionable strategies for addressing them in contemporary life.