A change; making a new decision.
Left is wrong and right is right, and both mean one is taking a new direction
To turn in dreams is to change direction spiritually.
A right turn may be towards good and a left turn towards wrongdoing.
A right turn may also be towards the logical while the left is to the intuitive.
Psychological / emotional perspective: Turning round or back in dreams is to look to the past for information. Turning on the spot suggests reaching for a different state of awareness.
To turn our bodies over signifies attempting to gain a different viewpoint, whilst turning an object over is to try to uncover hidden information or ideas.
Material aspects: In mundane terms to turn a project round is to make it viable.
The image of turning a lever or wheel may symbolize this in dreams. We make it work.
To be turning our cupboards or draws is an attempt to clarify our ideas.