To dream of curtains, foretells that unwelcome visitors will cause you worry and unhappiness. Soiled or torn curtains seen in a dream means disgraceful quarrels and reproaches. ... Ten Thousand Dream Interpretation
If the curtains are open in your dream, you will outwit someone who is working against you.
If you’re hanging new curtains, you’ll see an increase in your social life. White curtains indicate the need to perform some irksome task. Colored curtains indicate your standard of living will continue to be modest for a while longer.... Tryskelion Dream Interpretation