Avyakta means that which is “the unevolved, not manifest, undeveloped, imperceptible, invisible, universal Spirit”.
Avyakta Upanishad is a small Upanishad of Hinduism written in Sanskrit language. This is one of the 16 Upanishads attached to Samaveda and are classified under 17 Vaishnava Upanishads.
This Upanishad discusses cosmology, how the universe evolved after the creation, claiming that no one is aware of its origin or even the Supreme being had any role in its creation. In this upanishad the man-lion avatar of Vishnu presents ideas about Brahman in many chapters, but his poems also mention the worship of Siva, Indra, Prajapati and other deities.
Avyakta Upsnishad consists of the text of the prayer of the prologue, followed by 7 chapters with a total of 21 verses. Avyakta Upanishad combines theism, Samkhya, yoga, and abstract ideas of the Upanishads.
The date and author of the this upanishad is unknown, but likely a medieval text expanded over time. The Avyakta Upanishad was mentioned by Gaudapada, states P.E. Dumont, Professor at the Johs Hopkins University, and therefore a version of the text likely existed before 7th-century CE
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