Text 121 Observing the Armies on the Battlefield of Kuruksetra 41
it was important that other heroes would not leave their strategic positions and allow the enemy to break the phalanx. Duryodhana clearly felt that the victory of the Kurus depended on the presence of Bhīṣmadeva. He was confident of the full support of Bhīṣmadeva and Droṇācārya in the battle because he well knew that they did not even speak a word when Arjuna's wife Draupadī, in her helpless condition, had appealed to them for justice while she was being forced to strip naked in the presence of all the great generals in the assembly. Although he knew that the two generals had some sort of affection for the Pāṇḍavas, he hoped that all such affection would now be completely given up by them, as was customary during the gambling performances.
TEXT 12
तस्य संजनयन्हर्षं कुरुवृद्धः पितामहः । 
    सिंहनादं विनद्योच्चैः शङ्खं दध्मौ प्रतापवान् ॥१२॥
tasya sañjanayan harşaṁ kuru-vṛddhaḥ pitāmahaḥ siṁha-nādaṁ vinadyoccaiḥ śaṅkhaṁ dadhmau pratāpavān
tasya —his;  sañjanayan —increasing;  harṣam —cheerfulness;  kuru-vṛddhaḥ —the grandsire of the Kuru dynasty (Bhīṣma);  pitāmahaḥ —the grand-father;  siṁha-nādam —roaring sound, like a lion;  vinadya —vibrating;  uccaiḥ —very loudly;  śaṅkham —conchshell;  dadhmau —blew;  pratāpavān —the valiant.
TRANSLATION
Then Bhīṣma, the great valiant grandsire of the Kuru dynasty, the grandfather of the fighters, blew his conchshell very loudly like the sound of a lion, giving Duryodhana joy.
PURPORT
The grandsire of the Kuru dynasty could understand the inner meaning of the heart of his grandson Duryodhana, and out of his natural compassion for him he tried to cheer him by blowing his conchshell very loudly, befitting his position as a lion. Indirectly, by the symbolism of the