Good example Brian of parallax error in vision, this is due to the separation of our eyes. Each eye sees a different picture and it's up to the brain to figure out the true path and then set the stance behind the cue ball and onto the shot line.
Each player will have to figure out how to adjust for their personal parallax error in their vision. No two people are the same.
I've posted this video before and I think the OP may benefit from watching it.
The only thing I would add to this video is to pay attention to where the butt of the cue is pointed on his body. This point on the body will be where the grip hand will always start to line up any shot.
https://www.youtube.com/watch?v=ZKoMZrg1MAg
And here is another video to help explain the above a little more clearly.
https://youtu.be/rDkP6iaP3MY Watch Ralph, his hand/grip will always start from the same position on his body on any shot line.
One other thing to mention is to NOT put the cue under your chin. When you fall down into the shooting position the cue will fall somewhere between your right eye pupil and the bridge of your nose, unless of course you are severely right eye dominant then the cue will fall down directly under your right eye.
The eyes should be horizontal and square to the playing surface and shot line.........just to answer the OP's question.
Hope this helps.
John