It actually says something along the lines of "Freezing Illusions" since the first half ("freezing" + particle) is just to describe what the Illusions part is all about.
IMO "Dreams of Ice" give off the same feeling. Dreams can be so good that you never want to wake up from them, so you've fallen into an illusion created by your mind that you're ultimately charmed by. If they froze over somehow, you can definitely never wake up again. Not that you'd want to wake up from such a wonderful dream.
