"There's a trick in it like focusing your eyes."

Later in the trilogy, other characters mention this trick. One character likens it to the Magic Eye pictures of our world,  random dot autostereograms which appear to be a meaningless pattern until the viewer relaxes the eyes in such a way that a clear image is revealed. You can view many Magic Eye patterns here and practise Lyra's trick.


Creative Commons Attribution Share AlikeStereogram - Credit: Fred Hsu