Visualizing your Aura is good way to increase spiritual awareness and get a life balans.
Knowing your aura can help you in many aspects of your life. It can help you improve a relationship. You can find out what kind of business or career is the best for you.
It is always good to know what your level of energy and chakras are for today. You can know exactly what kind of meditations, yoga practice and exercises work for you.
The colors of your Aura can change because it is directly related to your emotions, health, mental and physical activity, level of energy. However the primary colors tend to stay the same or close to them in the spectrum.