Verse 1

इति सिद्धगणोद्गीता गीताः श्रुत्वा महीपतिः ।विषादमाजगामाशु भीरू रणरवादिव

In plain words

Having thus heard the songs sung by the hosts of Siddhas, the king quickly fell into despondency, like a timid man at the din of battle.