Chakras are energy points within your body which receive and transmit life force energy in a circular or spiral manner. There are seven chakras total, six of these are aligned along the spine to the forehead and the seventh represents your conscious level (which is an energy point all it's own). The function of your chakras is to keep your mental, spiritual, and physical body in balance by receiving and sending life energy (prana) while spinning.
Chakras are vibrational in nature, they respond quite well to both color and sound vibrations. Each of your seven basic chakras resonates in tune with a specific color and a specific musical tone, and by visualizing the colors and tones of each chakra one by one, you can effectively restore your chakras to their original brightness, clarity, and vitality. You need your chakras to be open and spinning smoothly; not too fast nor too slow, and shining brightly. As with most things in life, balance is the key to good health in your body, and you can best achieve this by intending it to be so and using these methods to tune your chakras:
Tune your root or base chakra by playing or humming the musical note "C" (the "Do" part of the "Do-Re-Mi" song), while visualizing the color red.
Tune your second chakra by visualizing the color orange and humming, singing, or listening to the musical note "D", or "Ray".
Tune your solar plexus chakra by visualizing a sunny yellow color, and humming or singing or listening to the musical note "E", or "Mi".
Tune your heart chakra by visualizing the color emerald green and humming, singing, or listening to the musical note "F" or "Fa".
You can tune your throat chakra by humming or singing the musical note "G" or "So", while visualizing the color of sapphire blue.
Tune your sixth chakra by visualizing the color indigo blue, and humming or singing the musical note "A" or "La".
Slightly above the top of your head is your seventh or crown chakra. This is the chakra which connects your energy body to the spirit, and is where you receive information about your life purpose and spiritual path from the universe. You can tune your crown chakra by visualizing the color violet and humming or singing the musical note "B" or "Tea".
The purpose of working with these energies is to integrate all aspects of your life to create a more holistic being. Our chakras can be instrumental in our physical, mental, emotional and spiritual health. Everything in the universe must go through a cycle, and stimulating that cycle will bring you much inner wisdom and purity as we all move forward towards the same goal.