Arjuna, a warrior in the epic Bhagavad Gita As It Is, seeks to understand the true nature of Krishna, the Supreme Personality of Godhead, asking to see his cosmic form. Krishna grants him divine vision, revealing a magnificent universal form, filled with unlimited mouths, eyes, and celestial ornaments. This display overwhelms Arjuna, causing him great fear. Krishna reassures him, explaining that he is Time itself, the destroyer of worlds. However, seeing Arjuna's distress, he returns to his original four-armed form, offering reassurance and guidance. Krishna ultimately explains that he can only be understood through pure devotional service, emphasizing the importance of faith and devotion in achieving spiritual understanding.