Knowns and unknowns

What do I know?
What don’t I know?
The question of gaps large and small.
And I stand in the gaps.
Or I stand in the knowns,
for the unknowns are full of fear.

Then when I think I know,
the knowns begins to shift
and turn and twist,
so that the knowns become
the marshlands with
knowns and unknowns
spread out on a landscape
where which is which
I cannot tell.