Nothing is separated from Buddhanature, because there is no separate ‘self-existence’ in anything. Everything that exists intrinsically is a part of or emanates from Buddhanature; therefore, everything is pure Buddhanature just as it is.
Buddhanature is emptiness/connection-wisdom and constitutes all conditioned existence.
The problem with teachings on emptiness is that they often give you “the stick” i.e. “emptiness” and “no self”, without the carrot, i.e. “therefore everything is pure Buddhanature.” Put the two concepts together and you have something to be happy about as a Buddhist.