गाण्डीवं स्रंसते हस्तात्त्वक्चैव परिदह्यते। न च शक्नोम्यवस्थातुं भ्रमतीव च मे मनः ॥

gāṇḍīvaṁ sraṁsate hastāt tvak chaiva paridahyate na cha śhaknomy avasthātuṁ bhramatīva cha me manaḥ

Gândîva slips from my hand, and my skin burns all over, I am not able to stand, my mind is whirling,

In plain words: Arjuna says his bow, called Gandiva, is slipping from his hand. His skin feels like it is burning, he cannot stand, and his mind is spinning.