“In the basis (Tibetan: གཞི, Wylie: gzhi) there were neutral awarenesses (sh shes pa lung ma bstan) that did not recognize themselves. (Dzogchen texts actually do not distinguish whether this neutral awareness is one or multiple.) This non-recognition was the innate ignorance. Due to traces of action and affliction from a previous universe, the basis became stirred and the Five Pure Lights shone out. When a neutral awareness recognized the lights as its own display, that was Samantabhadra (immediate liberation without the performance of virtue). Other neutral awarenesses did not recognize the lights as their own display, and thus imputed “other” onto the lights. This imputation of “self” and “other” was the imputing ignorance. This ignorance started sentient beings and samsara (even without non-virtue having been committed). Yet everything is illusory, since the basis never displays as anything other than the five lights.”
"Dualistic vision arises from the second ignorance, the imputing ignorance; not from the first ignorance, innate ignorance."
Kyle Dixon:
What happens if the mind stops declaring?
Nothing, you still possess a cognitive obscuration that conceives of existent entities.
Emptiness is not just about imputation, it is about how cognition is influenced by ignorance fundamentally. If emptiness only required a cessation of designation then we would all be Buddhas by virtue of stopping thought so we don’t assign characteristics and so on. However that isn’t the case, we still perceive objects even if we stop imputing.
This is why in some traditions the schema of ignorance (avidyā) is layered. There is the imputing ignorance, but beneath that is the connate ignorance, and so on.
Empty doesn't mean it doesn't exist, physically (or otherwise).
While we don’t have to define emptiness as a lack of existence (although most sūtras do), at base it is imperative to understand that perception of the rūpaskandha, or physical matter (the four material elements that comprise “form”), that is endowed with “substance” (dravya) is considered a cognitive error.