He begins with his own tendency: rolling the clubhead behind his hands while pushing the handle outward. That early movement, he explains, leads him to lift the club and get it across the line later in the backswing.
His rehearsal keeps the hands moving inward while the clubhead remains outside them. The wings point back toward the target line, giving him a reference for the shaft angle established at address.
Baile also shows the opposite error. When the hands move too far inward and the clubhead too far outward, the wings tip toward his feet. He describes that as a shut clubface that will require a reroute later.
The exercise stays focused on the first three feet. Baile feels his upper body turning and a small pull through his left shoulder while he watches the cue.
For a home practice session, that makes a useful short block before hitting balls: rehearse slowly, film the opening movement, and compare what you see with the pattern Baile demonstrates. Keep the attachment work to rehearsals; remove it before returning to full swings.
A good rehearsal is something to check again when a ball is present. The lesson supplies a visible reference for the takeaway, and leaves the rest of the swing for further practice.