The space you live influences your feeling. If you are often feeling sentimental, get depressed, always thinking about past, one of the causes may be coming from your living space.
Is your room balanced with yin and yang ?
If your room is full of yin energy, it may give you too much yin energy and it may make you feel too much sensitive, over react , slow movements, feeling of homelessness for your life.
If your room has full of yang energy, it may make you always away from home, and not able to express your emotion easily, and make you feel hyperactive, and not practical enough.
Basically,
Yang energy makes you out going, quick action, confident, direct, focused, light, logical, strong, value decisiveness, change,
Yin energy makes you quiet, physically oriented, value comfort and safety, imaginative, sensitive, soft, nurturing, slow movements, heavy, introspective.
There is off course natural personality based on your birth date. Also the weather influence your feelings.
There is a story about one of my friends, who decorated her room with all black color.
Black is her favorite color, so she thought she would be happy. However after she set up, all her furniture ( table, dresser, chest ) , bed cover, curtains, even carpet with black color, her feelings became always down. Because the room looked very dark.
Color coordination is very important. Especially , if you are single who want to attract love, romance, and happy marriage, it’s good to avoid, too much black and blue in your space.