Bhagavad Gita · Chapter 1: Arjuna's Despair
Bhagavad Gita 1.12
तस्य संजनयन्हर्षं कुरुवृद्धः पितामहः ।
सिंहनादं विनद्योच्चैः शङ्खं दध्मौ प्रतापवान् ॥
tasya saṃjanayanharṣaṃ kuruvṛddhaḥ pitāmahaḥ | siṃhanādaṃ vinadyoccaiḥ śaṅkhaṃ dadhmau pratāpavān ||
Then Bhishma, the mighty grandsire and eldest of the Kurus, roared like a lion and blew his conch loudly, bringing joy to Duryodhana.
Modern context
Bhishma hears the anxiety in Duryodhana's speech and answers not with words but with a blast on his conch. Sometimes the kindest reply to nervous talk is steady action.