Blue is the colour associated with most positive feelings if you compare different cultures. Don't believe us? Imagine the azure tones of the caribbean sea or the bright hues of the sky. And just like that. You're cool and calm. Blue often represents peace and serenity. It can relieve stress and ease of the pain. It works almost like an antidote to all the anxiousness in the world. Don't worry. Be happy. Choose a blue flower.