Mahabharata Santi Parva Chapter 335:3

Mahabharata Santi Parva (Mokshadharma Parva) Chapter 335:3 Hence, O regenerate one, I shall discourse to thee on it agreeably to the truth. That which is minute, which is inconceivable, unmanifest, immobile, durable, destitute of all connection with the senses and the objects of the senses, that which is dissociated from the (five) elements—that is called the in-dwelling Soul of all existent creatures. That is known by the name of Kshetrajna. Transcending the three attributes of Sattwa, Rajas, and Tamas, that is regarded as Purusha in the scriptures. From Him hath followed the unmanifest, O foremost of regenerate ones, possessed of the three attributes of Sattwa, Rajas, and Tamas. Though really unmanifest, she is called indestructible Prakriti and dwell in all manifest forms. Know that She is the source whence we two have sprung. That all-pervading Soul, which is made up of all existent and non-existent things, is adored by us. Even He is what we worship in all those rites that we perform in honour of the deities and the Pitris. There is no higher deity or Pitri than He. O regenerate one, He should be known as our Soul. It is him that we worship. This course of duties followed by men has, O regenerate one, been promulgated by Him. It is His ordinance that we should duly perform all the rites laid down in respect of the deities and the Pitris. Brahman, Sthanu, Manu, Daksha, Bhrigu, Dharma, Yama, Marichi, Angiras, Atri, Pulastya, Pulaha, Kratu, Vasishtha, Parameshthi, Vivaswat, Shoma, he that has been called Karddama, Krodha, Avak, and Krita,—these one and twenty persons, called Prajapatis, were first born. All of them obeyed the eternal law of the Supreme God. Observing all the rites, in detail, that were ordained in honour of the deities and the Pitris, all those foremost of regenerate persons acquired all those objects which they sought. The incorporeal denizens of Heaven itself bow to that Supreme deity and through His grace they attain to those fruits and that end which He ordains for them. This is the settled conclusion of the scriptures that these persons freed from these seven and ten attributes, (viz., the five senses of knowledge, the five senses of action, the five vital breaths, and mind and understanding), who have cast off all acts, and are divested of the five and ten elements which constitute the gross body, are said to be Emancipate. That which the Emancipate attain to as their ultimate end is called by the name of Kshetrajna. He is regarded (in the scriptures) as both possessed of and free from all the attributes. He can be apprehended by Knowledge alone. We two have sprung from Him. Knowing him in that way, we adore that eternal Soul of all things. The Vedas and all the modes of life, though characterised by divergences of opinion, all worship Him with devotion. It is He who, speedily moved to grace, confers on them high ends fraught with felicity. Those persons in this world who, filled with His spirit, become fully and conclusively devoted to Him, attain to ends that are much higher, for they succeed in entering Him and becoming merged in his Self. I have now, O Narada, discoursed to thee on what is high mystery moved by the love I bear to thee for thy devotion to me. Indeed, in consequence of that devotion which thou professest towards me, thou hast succeeded in listening to this my discourse!'