Haha. I guess this is the case where you need to train your senses to see illusions.
Anti-Epicurean jokes aside, the easiest way to approach it would be:
1. Make the picture full screen (or just quite big)
2. Put your face close to the screen (let's say 8 inches)
3. Cross your eyes gently
4. Move away slowly with your eyes crossed but focused at the centre of the picture.
5. At one point your vision should focus and you should see my message at the centre in the 3rd dimension.
All this might not work if your sight is heavily impaired or you're neurologically incapable of perceiving depth. Otherwise, with a bit of practice you should realise it's not Greek but English.