How Can a Plumb Be Perfected?

Would an arrow straight and narrow On second sight slightly bent Still be sent To a target overcrowded If to only eliminate one Would it miss and be gone And collaborate no longer With collaborators as well As it fell? How in a crowd could I blend in And where would I go? How can a plumb be perfected And how would you know? With the brightest star untraceable In absentia would all righteous Brothers know? And if then there was a camera flash And as instantly as it came it was gone Did it go With a cartoon-like explosion Of a prop and a virtual Demolition zone? How in a crowd could I blend in And wherе would I go? How can a plumb be perfectеd And how would you know? If you penetrate the skies Will I ever again see your eyes? How can a plumb be for all time Still completely perfect? I sit around always thinking About how?