Silent Lucidity.
What a haunting song.
Can't put my finger on it, but maybe that's why I like it so much.
This, for me, is one of those songs that you can listen to over and over, and not get tired of hearing it.
What's the message of the song?
Apparently, it's the subject of lucid dreaming, in which a person is dreaming and aware of it.
Sounds deep.
I prefer to just enjoy the song and leave the deep meaning to whoever likes that sort of thing.

Here's a version of the song Queensryche did in 1992, unplugged.
Enjoy.