Koan
Knowing and not knowing
Nanquan said, "The Way is not a matter of knowing or not knowing. Knowing is delusion. Not knowing is blankness."
The Gateless Gate, case 19
How to sit with it
Neither grasping for answers nor giving up. Sit somewhere in between.
Read it once more, slowly. Then sit for two minutes and let it stay in the background. There is nothing to solve. New to this? Read what a koan is.