Dream about mistress suggests childishness. Perhaps you or someone is being a pain. You need to break up the issues and attack them piece by piece. This is a symbol for some issues with your neck or throat. A lot of pressure and stress is being put on you.
Mistress dream is a portent for tradition and old fashioned ideals. You are desperately rejecting an aspect of yourself. You may be involved in an uneasy situation. The dream is a symbol for big changes ahead for you. You need for more calmness in your life.
If you dreamt about mistress:
The celestial atmosphere indicates that before you can begin to involve your love interest in those emotional escapades that you enjoy so much, you will need to find a more intellectual approach. You may not capture their heart straight away, but you could well capture their imagination with your sense of humor and ability to talk on almost every subject under the sun.