Bhagavad Gita, Chapter 11, Verse 49

Be not afraid nor bewildered, having beheld this Form of Mine, so terrific. With your fears dispelled and with gladdened heart, now see again this former form of Mine.

Krishna's real instruction here is simple, let go of the fear and look again with a steadier heart.

Rather than dwelling on what just happened, Krishna moves straight to reassurance and invitation. Real comfort is offered directly, not left for Arjun to find on his own.