best laid plans

You can see the image of how you think you want it to play out.  You may even go so far as to live in that made up illusion for a while.  But eventually you wake up.  Eventually someone pinches you, or something breaks or comes crashing down, and you open your eyes and realize that what you wanted to build doesn't exist and by trying to live in it, you are actually missing out on what is right in front of you.