If you say so, up without down....etc, your idea of reality has a seer and the seen. Then it has to be dualistic and not 'the one' reality.
But actually, the reality is ONE and it is mere existence. How can one see the seer?
I think ur idea of reality is an object filling the gap.like saying There is only 'one' star in the sky and that is reality. But who is the one seeing the star?