वक्त्राणि ते त्वरमाणा विशन्ति दंष्ट्राकरालानि भयानकानि।केचिद्विलग्ना दशनान्तरेषु संदृश्यन्ते चूर्णितैरुत्तमाङ्गैः॥
vaktrāṇi te tvaramāṇā viśanti daṃṣṭrā-karālāni bhayānakāni kecid vilagnā daśanāntareṣu sandṛśyante cūrṇitair uttamāṅgaiḥ
Word by word
The verse says
— they are rushing into your mouths, terrible with teeth, and frightening. Some are caught between your teeth, their heads crushed to powder.
In plain words
This is the most violent image in the book, and softening it would be a lie about the text.
What matters is that these are people he loves, and he is watching them go.
The chapter is not being gratuitous. It is showing him the war he is about to fight, with the outcome already in it.
Where you've felt this · in community
A friend who works in a hospital says the hardest part of the job is not what you would expect. It is that she can usually tell, within a few minutes, roughly how things are going to go, and then has to spend the next hours with a family who cannot.
Going deeper
Being shown an outcome you cannot change is a particular form of suffering, and this is the Gita's sustained treatment of it.
Arjuna is watching what is going to happen, with the people named. He is not being asked to prevent it and he is not being told it is avoidable. The vision is not a warning in the ordinary sense — nothing is offered that he could do differently.
The traditions differ on how literally to take all of this, but none of them makes it comfortable, and attempts to allegorise it entirely tend to be evasions.
What the text does with it is the honest part. It does not tell Arjuna to feel better about what he is seeing. The next verses explain what it is, which is not the same as making it all right, and the chapter is careful never to confuse the two.