The reflecting water, the individual being, the self seen as water, be it a drop or a pool, reflects the sky (the all) accurately and clearly.
UNLESS, the water is turgid, murky, covered, rippled and disturbed.
Then the truth of the "sky" is not clearly seen and 'one' is confused, mucked-up.

Outside my window, plum blossoms,
Just on the verge of unfurling, contain the spring;
The clear moon is held in the cup-like petals
Of the beautiful flower I pick and twirl.

Dōgen