Saṃhāra-krama (The Sequence of Cosmic Dissolution) — Yājñavalkya’s Discourse
विपन्ना धारणास्तात नयन्ति न शुभां गतिम् । नेतृहीना यथा नाव: पुरुषानर्णवे नूप
vipannā dhāraṇās tāta nayanti na śubhāṃ gatim | netṛhīnā yathā nāvaḥ puruṣān arṇave nṛpa ||
Bhīṣma dit : «Ô cher enfant, des disciplines de dhāraṇā (concentration) manquées ou imparfaites ne mènent pas à une issue favorable. De même qu’une barque sans pilote ne peut faire traverser l’océan aux hommes, ainsi, lorsque les pratiques de dhāraṇā ne sont pas solidement établies, elles ne peuvent conduire à la bonne voie ni à une réalisation plus haute.»
भीष्म उवाच
Spiritual techniques (dhāraṇā and related yogic disciplines) must be properly established and guided; if they are defective or incomplete, they cannot lead to auspicious spiritual progress—just as a boat needs a helmsman to cross the ocean.
In Śānti Parva, Bhīṣma instructs the king on dharma and inner discipline. Here he uses a practical metaphor—an unguided boat at sea—to warn that unguided or failed yogic concentration practices do not yield the promised higher good.