Book excerpt: The 7 chakras are energy centers that are fundamental for our well-being. When the 7 chakras are open and properly balanced, they produce frequencies and vibrations that travel outside our body creating a layer of color around us, also known as aura. By understanding the main 7 chakras, we can improve our lives and connect our physical body to our spiritual body. This will in turn, enable us to lead longer and healthier lives.