HOW COLOR WORKS
Light is produced by the sun. This light bounces off matter and according to it's absorbancy and molecular structure, produces vibrations that we see as color.
Vibration, (movement or energy) is produced by everything and as a result, all energy interacts with each other.
This includes the affect of color on the human body.
This all seems very complicated, but has been scientifically studied and research is easily found. So I won't explain anymore here, I just wanted to give a simple idea of how it works.......
This is a basic way to see that color can affect our good and bad feelings. And we know that when we are feeling good, it is easier to handle just about anything.
So, this is just a simple understanding of how color influences your feelings.