The Great Epic of the Bhārata dynasty 12.187.1

12.187.1

yudhiṣṭhira uvāca |
adhyātmaṃ nāma yadidaṃ puruṣasyeha cintyate |
yadadhyātmaṃ yataścaitattanme brūhi pitāmaha || 1 ||

"Yudhishthira said, 'Tell me, O grandsire, what and of what nature is that which is called by the name of Adhyatma and which is laid down for every person. O thou that art acquainted with Brahma, whence has this universe consisting of mobile and immobile things, been created? When universal destruction sets in, to whom does it go? It behoveth thee to discourse to me upon this topic.'