अव्यक्त–व्यक्त–कारणकार्यविवेकः
Avyakta–Vyakta and Causality: Discrimination of Field and Knower
नेन्द्रियर्मनस: सिद्धिर्न बुद्धि बुछाते मन: । न बुद्धिर्बुद्धाते5व्यक्तं सूक्ष्मं त्वेतानि पश्यति
nendriyair manasaḥ siddhir na buddhiḥ budhyate manaḥ | na buddhiḥ budhyate ’vyaktaṃ sūkṣmaṃ tv etāni paśyati ||
इन्द्रियाँ मन को नहीं जानतीं; मन बुद्धि को नहीं जानता; और बुद्धि सूक्ष्म, अव्यक्त आत्मा को नहीं जानती। परन्तु वही सूक्ष्म, अव्यक्त आत्मा इन सबका साक्षी है—वह सबको देखता और जानता है।
भीष्म उवाच
The verse teaches a hierarchy of knowing: senses cannot grasp the mind, mind cannot grasp intellect, and intellect cannot grasp the subtle unmanifest Self; nevertheless the Self is the witnessing principle that illuminates and knows all mental and sensory operations.
In Śānti Parva, Bhīṣma instructs Yudhiṣṭhira on dharma and liberation-oriented wisdom. Here he explains an inner analysis of cognition to direct attention away from external faculties toward the witnessing Self as the basis of true knowledge.