and actually, by attempting to embody Vague, we are trying to
  MAKE concrete something that cannot exist on its own.

  In short, trying to describe Vague As A Person - a noun, runs us
  into cognitive difficulties and troubles in trying to "flesh
  out" the meaning as it were, because it doesn't exist without
  something to attach it to.

  Notice all the metaphor required here: "make concrete". "flesh
  out".

  It's like trying to take one of Plato's forms and building them
  on a workbench . But if Plato's forms never existed in the first
  place, we end up just going around in circles, attempting to
  make meanings out of meanings, without seeing where they came
  from. Knowing how vague ties into physical reality and into our
  consciousness over the millenia of usage (destinationless
  walking), the meaning of vague becomes clear.