किरीटिनं गदिनं चक्रिणं च तेजोराशिं सर्वतोदीप्तिमन्तम्। पश्यामि त्वां दुर्निरीक्ष्यं समन्ता द्दीप्तानलार्कद्युतिमप्रमेयम् ॥

kirīṭinaṁ gadinaṁ chakriṇaṁ cha tejo-rāśhiṁ sarvato dīptimantam paśhyāmi tvāṁ durnirīkṣhyaṁ samantād dīptānalārka-dyutim aprameyam

Shining, a mass of splendour everywhere, With discus, mace, tiara, I behold: Blazing as fire, as sun dazzling the gaze, From all sides in the sky, immeasurable.

In plain words: Arjuna sees Krishna shining everywhere, holding a discus and a mace and wearing a crown. He blazes like fire and like the sun, so bright it is hard to look at, and too big to measure.