Sandpaper 
To dream of sandpaper indicates that you are experiencing a difficulty or crisis in a relationship. In addition, it may suggest that you need to change your aggressive and severe approach or outlook towards a certain situation.
Varnishing
To dream that you are varnishing is an indication that while you may have made great strides in the short term, you will ultimately fail at your goal.
To dream that you see someone else varnishing foreshadows danger and loss in your future.
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