If you ever want to go to the theater to catch a new movie but find you do not have two hours or more to spare, you can always catch a flick in your own meditation space. Sound fantastical? It is very true: the other type of intermediate meditation resides within your own eyelids.
Most people probably already know that when you shut your eyes you can see various colors on the black "screen" that your eyelids produce. Often as kids we learn to shut our eyes and press on them with our hands to make vivid fireworks. Believe it or not, some people who meditate believe that the lights you see when you shut your eyes are a direct representation of your inner spirit. If that idea is truthful, it would be pretty powerful to see a reflection of your inner self, whenever you wanted. Even if the idea is mere theory, the lights in our eyes offer another way to meditate.
As with the breathing method, assume a normal stance for meditation to begin light meditation. As you sit, back supported and eyes closed, focus your attention on the lights that appear on the black backdrop of your eyelids. Again, clear your mind of outside notions. The gist with light meditation is to simply watch a movie made up of the lights your body produces. This act sounds extremely simple, but the catch is to watch and do nothing but watch. Watching the lights but thinking about something else will not help you achieve your meditative goal. Do not attach "meaning" to the lights.
If a shape appears and it looks like a cat, do your best not to assign the shape the definition of a cat. The best analogy is to watch the lights as you would a fireworks show without imposing a plot, characters, or any meaning at all. Simply watch the lights for the sake of watching the lights. This practice is very difficult to master. A mind easily strays when watching something and not thinking or placing meaning. If you notice your mind straying, stop briefly and refocus.
Once you become good enough to keep your mind on the lights and only the lights, you might notice a "jump of blankness" in your mind. What this term effectively means is that your mind was able to shut itself off from the everyday mode of thinking and it jumped into a mode of relaxation. Some Buddhists would claim that you have just caught a reverberation of your inner light, your inner spirit, your inner self. As with the breathing method, if you can achieve this state for even a moment, your body will probably experience a sense of relaxation that is likely to last for hours or days.