tatrasvah saibya-sugriva-

 meghapuspa-balahakah

tamasi bhrasta-gatayo

 babhuvur bharatarsabha

 

tan drstva bhagavan krsno

 maha-yogesvaresvarah

sahasraditya-sankasam

 sva-cakram prahinot purah

 

Translation: 

 

In that darkness the chariot’s horses — Saibya, Sugriva, Meghapuspa and Balahaka — lost their way. Seeing them in this condition, O best of the Bharatas, Lord Krsna, the supreme master of all masters of yoga, sent His Sudarsana disc before the chariot. That disc shone like thousands of suns.

 

Purport: 

 

Srila Visvanatha Cakravarti gives the following insight into this verse. Lord Krsna’s horses had descended from Vaikuntha to participate in His earthly pastimes. Since the Lord Himself was pretending to be a finite human being, His steeds now acted confused to enhance the drama of the situation for all who would one day hear this pastime.