Hamsa Upanishad

It is classified as one of the twenty Yoga Upanishads, and attached to the Shukla Yajurveda. The Hamsa Upanishad is structured as a disorganized medley of ideas, in the form of a discourse between Hindu sage Gautama and the divine Sanatkumara, on the knowledge of Hamsa-vidya as a prelude to Brahmavidya. The text describes the sound of Om, its relation to Hamsa, and how meditating on this prepares one on the journey towards realizing Paramahamsa. The text title likely refers to it being a treatise for individual soul, seeking the highest soul (Paramahamsa).