Try this!
This is without doubt one of the coolest PC illusions I have seen so far.
Follow these instructions:
1) Relax and concentrate on the 4 small dots in the middle of the picture for about 30-40 seconds.
2) Then take a look at a wall near you (any smooth, single colored surface)
3) You will see a circle of light developing
4) Start blinking you eyes a couple of times and you will see a figure emerging
5) What do you see? Moreover, who do you see?

August 13th, 2006 at 11:46 pm
oh my gosh, that was scary
August 14th, 2006 at 1:54 am
I see a circle. What was I supposed to see?
August 14th, 2006 at 7:28 am
holy frikkin’ jesus
August 14th, 2006 at 7:28 am
df
August 14th, 2006 at 10:35 am
Gokul, I think you forgot to blink your eyes. Once after staring at the image, you look at a wall and see a circle, start blinking your eyes.
August 14th, 2006 at 4:57 pm
Ah, I see the light :).
For the curious, here’s how you can cheat: Right-click the image and copy it. Then open Paint, and paste it. Press “Ctrl-I” (Image->Invert). That’s what you should see.
I’m guessing that staring at the picture long enough produces enough ‘burn’ in your retina that when you look at the blank wall, you see the burnt image.