The club moves around your body and the club face rotation feels open to closed = there are no straight lines in a golf swing.
So disregard your previous golf lessons and listen to me. I tell you what they (golf pros) do, not what is said that they (the golf pros) do. NO STRAIGHT LINES IN A GOLF SWING....
Visible to the eye, the ball straight club head curving left, slightly different from 'the double lock' on a news channel.....🙄
For more logical golf instruction read on!