She went back to her homeland, her mind free of hate. (English Syntax and Argumentation, Bas Aarts)
Aarts says the highlighted part is a small clause that has the role of adjunct. By the remarks of Martha Kolln, the clause is the adjunct for the whole sentence.
(The absolute phrase introduces an idea to the sentence as a whole, not to any one of its parts; Understanding English Grammar, Eighth Edition, Martha Kolln, p203)
If we say the small clause or the absolute phrase modify the predicate - went back to her homeland, is it wrong?