Struggling to understand this bunker concept

Body faces right of target (hitting a draw), club face faces right of that. On downswing, swing so that you feel the club face at impact is square to target.
 
LoL Dave I understand what he has said but I can't understand the concept of it- the mechanics of why this is better than open or square method everyone else seems to teach
 
I was expecting some whacky, hard to comprehend video.
Having watched it, I have to say sorry but I'm not sure what you don't understand.

Don't over think it, it's just a suggestion for something new to try if you struggle in bunkers. Just try it.
 
Went into 2 bunkers today and tried it on both and popped out easy enough both times.

The reason I didn't understand as you are kinda having to do helicopter shot with head over taking hands to get face square again. Also felt like I had to cast hands out but did work both times.
 
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