White light is known esoterically as the highest form of spiritual protection.
Since white light is made up of all of the colors of the spectrum, we can say that the consciousness of your being, whose parts are composed of all of the charkas together, of all of the colors combined, can be referred to as White Light. In other words, the deepest part of who you are is the source of White Light, although some people choose to experience it as coming from above.
How can you use white light for protection and spiritual healing?
When you are in the deepest part of your being, as a single point of consciousness glowing with intelligence, you experience White Light. It is because White Light comes from and represents this deepest part of yourself that it can be used for cleansing and releasing all that is not you.
You can do this by filling yourself with your own White Light, and returning to the consciousness you know and recognize as yourself when you are in balance. When you fill yourself with White Light, and surround yourself with White Light, you can feel protected. You feel safe and more relaxed. When you relax more, and open more, you glow with more White Light, and feel safer. This process continues until you are totally open, and totally relaxed, and feeling totally protected, and totally in White Light.
When you have a perception of someone else as having a problem or a potential problem, you can imagine the person filled with White Light and surrounded by White light, and hold the perception that the person is, in fact, all right.
Rather than continuing to hold the perception of the problem you can see the other in the White Light, happy and healthy, and doing something they love to do. By insisting on holding that perception, you thereby contribute that image to the co-creation we call physical external reality.
Since White Light represents the deepest part of who we each are, it represents that part of us that exists behind and beyond any symptoms. The symptoms are not who we are, but just what we have been experiencing, and not form our deepest part.
And know that anything can be healed.