It is possible to improve your natural ability with clairvoyance through practice. A good start might be to look around you, then close your eyes and try to picture your surroundings. This is also good exercise for visualization. And visualization is an essential talent in magick. Open your eyes again and check your accuracy. Then close your eyes and try it again. When you use your physical eyes, look at everything like a child seeing it for the first time. Let the vividness of colour and form burn into you, until everything takes on a veritable glow. Try to capture that glow when you close your eyes now and picture your surroundings. It's just a simple step to extend what you see with your eyes closed into what you remember seeing in the next room, or what you *imagine* seeing in the next building, the next city, even the other side of the world. Don't expect perfect results, especially at first. Just try to be even partly right. Another exercise is to picture a clock face, and thereby tell the time clairvoyantly.
Whenever we concentrate our thoughts, we draw psychic energy together. This is called a thought form. Usually the energy dissipates as soon as we break the concentration, but it is possible to purposely concentrate energy in this way, producing very strong thought forms. Such thought forms are vortexes or centres of psychic energy. They can exist as entities by themselves, at least for a while. They are basically inanimate, non-thinking forces. Talking to one is about as logical as talking to a chair. In this way, thought forms are similar to elementals, ghosts, and spirits. All of these psychic entities consist of a psychic energy vortex which could be described as a localized field or as a discontinuity of the physical world.
Psychic entities respond to certain electrostatic and magnetic fields, and to other energy vortexes. That is why they respond to magick ritual. Someday, we may accomplish the same thing with electronic machines. Psychic entities are sometimes able to affect our thought processes.
Thought forms, elementals, and ghosts are usually not very smart. If they display any intelligence at all, it is limited. They are the morons of the spirit world. Their behaviour is usually automatic, repetitive, robot-like (just like some people). We see that artificial elementals are little more than astral robots. Spirits and deities are more intelligent and volitional. (Source: spiritual.com.au)