This is what makes Buddhism such a pain in the ass. It plunges us into a hall of mirrors, taking away the pleasurable certainties of both dualism and non-dualism.
Just when we think we have some insight into not-knowing, knowing appears in the mirror. When we think we have some insight into emptiness, the mirror reflects form.
In this way, the Buddhadharma cuts away everything, leaving only the mirror. So this week I'd like to look in the mirror a little, and see what kind of dog appears.