New rogue player; sometimes running around a dungeon I see red or white signal lines similar to when I search and locate traps and secret doors, but at the time I'm not searching but just running down a hallway. and they always seem to point through a wall or something. I can't figure out what any of them are trying to tell me.
What do these mean? Is it signal that something hidden is there? So far I've never figured out how to get to whatever it's pointing to. Even going on the ddo wiki and looking at the map with spoilers, I still can't figure it out.
Maybe I've got the wrong idea?