Good quality lighting will uplift or calm an area.
Bright light keeps energy moving.
To quiet an area invite yin energy into the home. Yin energy is softer and lower lighting, which brings calmness.

To play with your lights levels, you can introduce the use of dimmers.
Dimmers will allow you to change the mood of the room depending of the efect you want to accomplish.
Lighting constitute an important Feng Shui cure.
Use lower lighting in the family room when it is time for family discussions.
Increase lighting for family playing night.

Put lighting to work on your side!!!