This chapter introduces the foundational concept of Sufi phenomenologyPhenomenologySufi phenomenology: eidos. Before addressing its distinctive role in this philosophical system, the chapter traces the evolution of the term from Homer to HusserlHusserl Edmund, highlighting its transformation and eventual return to its metaphysical origins. In the Sufi phenomenological framework, eidos reclaims its Platonic essence while acquiring new dimensions that align it with both Sufi metaphysics and quantum theoryQuantumquantum theory. It is conceived simultaneously as the particle form of the energy waveQuantumenergy wave and the first manifestation of Absolute WillAbsoluteAbsolute Will—marking the initial and smallest unit of all creation. The chapter also explores essential concepts such as the original mixtureOriginal mixture and a‘yān-i thābita, synthesizing the metaphysical models of AnaxagorasPre-Socratic philosophersAnaxagoras and Ibn ‘ArabiIbn ‘Arabi Muhyiddin to illuminate the multi-layered nature of creation. Through this comparative approach, the text reveals a continuous thread of metaphysical inquiry that transcends historical and cultural boundaries. Finally, the chapter proposes a classification of eidē and introduces a conceptual model of divine creationDivine creation and human creativityHuman creativity—frameworks that will be further developed in the following chapters.