Sanatsujatiya
The Sanatsujatiya (Sanatsujātīya) refers to a portion of the Mahabharata (Mahābhārata), a Hindu epic. It appears in the Udyoga Parva (book), and is composed of five chapters (Adhyāya 41–46). One reason for the Sanatsujatiya's importance is that it was commented upon by Adi Shankara, the preeminent expositor of Advaita Vedanta, and one of the most important Hindu sages, philosophers, and mystics.
Buitenen wrote that "The Sanatsujatiya had a minor reputation as a philosophical classic.... The text certainly deserves more study than it has received" (p. 182). He also wrote that
The Sanatsujatiya should probably be best approached as a brief, late-upaniṣadic text that very early attracted to itself, by way of appendix, commentary, and continuation, other texts that were considered to be of the same inspiration.... Its core seems to be the triṣṭubh verses of the beginning, in which the problem of death is addressed. This is followed, in ślokas, by reflections on brahman and wisdom, on the twelve vices and twelve virtues, and on Brahmacharya (brahmacarya). It ends with a mystical hymn on the manifestations of the Supreme... with the refrain: "The yogins behold the sempiternal blessed Lord." (p. 182)