Meaning and elaboration
Meaning: The Primal Being, the Origin of All Existence.
Elaboration
Sarv'Ādya is a compound Sanskrit name. Sarva means "all" or "everything," and Ādya means "first," "primal," or "original." The name therefore points to She who stands at the beginning of all things, the primordial source from which everything arises.
The Supreme Primacy This name presents Kali as the uncreated source from whom creation, phenomena, beings, and every state of existence emerge. She is not merely an instrument within creation, but the self-existent Shakti through whom the cosmos comes forth. Before anything appeared, Kali, in Her formless and timeless essence, existed as the boundless potential of all manifestation.
The First Cause In Shakta understanding, Sarv'Ādya reveals Mahakali as Para Brahman, the Supreme Reality and the first cause (Kāraṇa) of all that exists. She is the ground of being (Dhāraṇī), the underlying support on which creation rests and from which it draws its sustenance. All things arise in Her, depend on Her, and remain pervaded by Her.
Beyond Beginning and End Though She is called the origin of all, She herself has no origin. She is anadi, beginningless, and ananta, endless. Her primacy is not merely temporal but metaphysical, showing Her as the absolute and uncaused cause. To realize Her as Sarv'Ādya is to understand that She is both the efficient and the material cause of the universe.