Upvote:1
If one focuses on the emptiness of things, it will be the object of the mind at that time. Those(non Buddhists) who attain the Ākiṃcanyāyatana(7th Jhana) could get the false view that sphere of Nothingness is unchanging and permanent. But it isn't.
Upvote:2
I think such experiential truths should not be intellectualised. Any intellectual stance - of permanence or impermanence will be outside of non-dual reality.
Silence is the right answer. cf. Vimalakirti sutra (Wikipedia).
Vimalakīrti remains silent while discussing the subject of emptiness with an assembly of bodhisattvas. The bodhisattvas give a variety of answers on the question what non-duality is. Manjusri is the last bodhisattva to answer, and says that "by giving an explanation they have already fallen into dualism". Vimalakirti, in his turn, answers with silence.
p.s. I didn't downvote, I don't object to the question.