Originally posted by dark99
I think it like if he had a lead wall around him that mimicked the surrounding area... as in no rays could penetrate through the magic screen... it just seems that way to me at least... of course the echo visor will still sense the motion so she can detect him with that...
Absolutley right. For example...
The guard having the stone mask, was standing inside a ring of rocks. If you walk inside that ring, there is no one there, meaning you don't bounce into anyone when you run through. You can stand at his spot and he is still not there, like you went right through him.
However, when using the Lens of Truth, you can see him. The Lens of Truth shows the truth, meaning that if a ghost is invisible, you see him as he is, and if a man wears a mask you will see the bearer of the mask....
And Link does turn into the enviroment. Go to Gerudo Fortress, then into the main building. There are two guards there. If you stand in front of them and try to run through, they will comment "what is that rat doing here, toss it out". Link takes the form of the enviroment, and since this was inside a building there was nothing else but a rat to turn into...