Bhagavad Gita 11.8

न तु मां शक्यसे दृष्टुमनेनैव स्वचक्षुषा |
दिव्यं ददामि ते चक्षुः पश्य मे योगमैश्वरम्

Translation

But you cannot see My cosmic form with these physical eyes of yours. Therefore, I grant you divine vision. Behold My majestic opulence!