There is no duality. There is only nonseparation, only elightenment.
Nonseparation can appear as separation; this is just an illusion.
Beauty is nonseparation. Beauty is just one way that nonseparation appears. There's no real contrast. Contrast is nonseparation appearing as contrast.
Everything that seems to be grasped as as being somehow fulfilling is actually nonseparation. Nonseparation is why everything seems to be as compelling and complete as it does.
Separation is always an illusory mischaracterization of nonseparation. For example, memories can seem to be about something. That's only because memories are wholeness appearing as memories; of course they seem to be about something – that's the wholeness. But they're not really about something.