अव्यक्तोऽयमचिन्त्योऽयमविकार्योऽयमुच्यते।तस्मादेवं विदित्वैनं नानुशोचितुमर्हसि॥
avyakto ’yam acintyo ’yam avikāryo ’yam ucyatetasmādevaṃ viditvainaṃ nānuśocitum arhasi
Word by word
The verse says
It is called unshowable, unthinkable, unchangeable. Knowing it is like this, you have no reason to grieve.
In plain words
Three more words, and the last one is a surprise.
Unshowable — you cannot point at it. Unthinkable — you cannot get it into a thought. Unchangeable.
And then the conclusion Krishna has been driving at for fourteen verses: so do not grieve.
Where you've felt this · in parenting
Trying to explain to a child what a country is. You can point to a map, a flag, a border post. None of them is the thing. At some stage you stop pointing and just use the word.
Going deeper
Acintya — unthinkable — is the boldest word in the sequence, and it is doing something unusual.
Krishna has spent fourteen verses describing this, and now says it cannot be thought. That looks like a contradiction. It is not. He is marking the limit of what the preceding verses were.
Everything he has said has been by negation and analogy — not cut, not burned, like changing clothes. None of it delivered the thing itself. This verse says so out loud, which is more honest than most philosophy manages.
That has a consequence for how to read what came before. These verses are not a proof that leaves you obliged to agree. They are a pointing.
And notice the structure of the conclusion: knowing it thus, you should not grieve. The grief is not attacked directly. It is left without a foundation, on the grounds that what it is grieving for is not the sort of thing that can be lost.
Whether that reaches a person actually in grief is the honest question. Krishna seems to know it does not, because in the next verse he changes tactics entirely.