This chapter examines the specificity of Sufi phenomenological reductionSufi phenomenological reduction, framed through the analogy of the human circulatory system. The process unfolds in two interrelated stages: self-reductionSufi phenomenological reductionself-reduction, involving self-awarenessSelf-awareness, recognition of the soul, formation of the Ego, its relationship with the divine, and the filtration and rationalizationRationalization of gained knowledge; and external reductionSufi phenomenological reductionexternal reduction, engaging education, life experienceExperiencelife experience, and knowledge of the surrounding world. This dual process reframes the Ego both as the result of self-reductionSufi phenomenological reductionself-reduction and as the source of external reductionSufi phenomenological reductionexternal reduction. The analysis compares phenomenological epoché with the Sufi concept of fanāʾ, highlighting the contrasting yet complementary perspectives of DescartesDescartes René’ “I think” and the Sufi “I pray” as paths converging toward the LogosLogos. Within this framework, Sufi phenomenological epochéEpochéSufi phenomenological epoché—the intersection of the subjective spiritSpiritsubjective spirit with the Absolute SpiritSpiritAbsolute Spirit—emerges as the culmination of the search for true knowledge and the creation of new eidetic structures. Diagrams, including HallajHallaj Mansur’s schemes from his Tawasin, illustrate the process. The chapter further interprets the formation of new eidetic structures through fuzzyFuzzy logic logic, describing the path from zero to one as the journey from the unawakened state to realization.