Mind as Charioteer; Kṣetrajña, Tapas, and Dhyāna-Yoga
Adhyātma-Upadeśa
विज्ञेयं ब्राह्मणैर्वद्धेर्धर्मज्ै: सत्यवादिभि: । शुक्रल, कृष्ण, रक्त, नील, पीत, अरुण, छोटा, बड़ा, मोटा, दुबला, चौकोना और गोल --इस प्रकार तैजस् रूपका बारह प्रकारसे विस्तार सत्यवादी धर्मज्ञ वृद्ध ब्राह्मणोंके द्वारा जानने योग्य कहा जाता है
vijñeyaṃ brāhmaṇair vṛddhair dharmajñaiḥ satyavādibhiḥ | śuklaḥ kṛṣṇaḥ raktaḥ nīlaḥ pītaḥ aruṇaḥ kṣudraḥ bṛhat sthūlaḥ kṛśaḥ caturaśraḥ vṛttaḥ—iti prakāreṇa taijasa-rūpasya dvādaśa-vidhaḥ vistāraḥ satyavādibhir dharmajñair vṛddha-brāhmaṇaiḥ jñātavya iti ucyate ||
Vāyu said: “This should be understood from aged Brahmins who are truthful and who know dharma. The luminous (fiery) form is taught to have a twelvefold expansion—white, black, red, blue, yellow, tawny; small, great; thick, thin; square and round. Such is what the truthful elders, grounded in dharma, declare as fit to be known.”
वायुदेव उवाच