the expense, the sentiment, the no going back

Hello, I'm an English learner in South Korea.

While reading a novel 'Walk the Blue Field' written by Claire Keegan, I came across the expression below:

There's the expense, the sentiment, the no going back.

Is this usage a kind of emphasis even though it's ungrammatical? Cause I've learned that the article the cannot be used in front of a determiner. If I use this expression in daily conversation, can it be accepted as a natural one?

This is using "no going back" as a noun phrase, and so it can take an article. So yes, this is grammatical, but it’s not something you’re likely to need to use as a learner.

Without context it's unclear what the sentence refers to, but I agree that it's grammatical but a bit unusual. The idea is presumably something like "the fact that there would/will be no going back."

Glasguensis said:

This is using "no going back" as a noun phrase, and so it can take an article. So yes, this is grammatical, but it’s not something you’re likely to need to use as a learner.

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Thank you very much! Helped me a lot!