Luke shrugged uncomfortably. "I don't know. I mean, you can use it to hide in plain sight, to convince guards you're supposed to be where you aren't..."

In his head he was back in a landspeeder approaching a checkpoint and knowing he was doomed.

"...as long as there's power, there's a way to abuse it," he said. "The Jedi have a lot of power at their fingers. Which is why a fall is so catastrophic. The Emperor certainly didn't have any qualms about reading my mind. Neither did Vader."