Credit to Psiwiki for this ability
Clairvoyance, from the Greek words clair (clear) and voyance (vision). Clairvoyance is easily translated as clear vision. This ability is a very big chunk of ESP, also know with the other "clairs" as clairsensing. With this, you not only are able to see ghosts,energy (gravity,magnetism,electricty,etc.), but can see the future and past, and so much more. Clairvoyance is very closely related to precognition and retrocognition, and remote viewing as well.
To be able to have this, all it takes is either
1: Opening your third eye, or
2: practicing visualization.
People with high visualization skills are more natural at this and grasp it easier and faster.
Here's how to open 3rd eye chakra (it's between your eyebrows and has an indigo color):
1. First relax and meditate for 10-15 min.
2. Visualize a bright indigo colored whell or vortex swirling clockwise bettween your eyebrows, glowing very brightly.
3. Focus all your attention onto it. Practice everyday, and you will know its open.
1. Just relax and meditate
2. Get a small object and for 30-45 sec. look at all its dimensions and look at all its sides.
3. When times up, close your eyes and try your best to form a mental image in that black space behind your eyelids. It will be hard for some after their first few tries, but if you keep at it for about 2 or so weeks without giving up, you will get it.
Now after your third eye is open, try to see your energy through it.
===The exercise is this: visualize yourself holding seven balloons, of the colors red, orange, yellow, green, blue, violet and indigo. Let the balloons go one by one, beginning with the red balloon. Watch them float up to the blue sky until they disappear before you release the next one. If you’re not used to visualizing, then this exercise could be quite difficult for you at first. You may find it hard to concentrate or it may be difficult for you to visualize vividly or in color. It all depends on how developed your imagination muscles are.
Any activity which uses your visual imagination is good for strengthening clairvoyant abilities, because your imagination is the tool that Spirit uses to send you information in the form of images. The more well-oiled your imagination cogs are, the easier it is for spirit to send you clear images. How can you tell the difference between what’s from your imagination and what’s from Spirit? When you receive an image from Spirit, you are not in control. You are not creating the image. It just appears in your mind’s eye without any active participation from you.
Another way to open up your clairvoyance: Imagine a third eye, between your eyebrows. Visualize the eyelid on your third eye opening up. All visualization does is set an intention to do something. If you visualize this regularly, you’re putting energy behind your intention to open up your third eye, the centre of your clairvoyant abilities.