Her voices will offer up the image of the solar tower, that constant beam of red energy disappearing, bringing back the yellow sun.

Clark, obviously, can't see her visions. but his thoughts are already along similar lines. This is the first time since the takeover that he's felt like he might be able to do something. "You guys shut down that tower and bring back the yellow sun, you know I'm your best chance of getting back that ring." And he doesn't care if Lois hears. He's not going to say that he's the Blur, but finding out he has a secret identity is small potatoes compared to what they're facing.