Daiva–Puruṣakāra Discourse and the Elephant-Corps Engagement (भीमगजानीक-सम्भ्रान्ति)
अन्तरेण कलिड्डानां पाण्डवानां च वाहिनीम् । तां संततार दुस््तारां भीमसेनो महाबल:,कलिंग और पाण्डव-सेनाके बीचमें बहनेवाली उस रक्तकी दुस्तर नदीको महाबली भीमसेन अपने पराक्रमसे पार कर गये
antareṇa kaliṅgānāṃ pāṇḍavānāṃ ca vāhinīm | tāṃ santatāra dustarāṃ bhīmaseno mahābalaḥ ||
Sañjaya said: Between the forces of the Kaliṅgas and the Pāṇḍavas there flowed a dreadful, hard-to-cross river of blood; yet Bhīmasena, mighty in strength, crossed it by the sheer force of his valor—pressing forward through the horror of war without faltering.
संजय उवाच
The verse underscores the terrifying moral and physical cost of war—symbolized by a ‘river of blood’—and simultaneously presents Bhīma’s unwavering kṣatriya resolve: in the face of overwhelming horror, he advances to fulfill his martial duty.
Sañjaya describes the clash between the Kaliṅga contingent and the Pāṇḍava forces. Amidst the slaughter, a metaphorical (or vividly described) river of blood lies between the armies, and Bhīmasena forces his way across it through sheer strength and courage.