"Protect your mind from what exactly? From reading your thoughts or. Is this more literal taking control of your body?"

The only psionics Jim has any experience with are Vulcan mind melds and even that is more bookwork than actual experience. The only time he's ever melded with a Vulcan it was the elder Spock. Given the circumstances it was...intense. Brief though, and the elder Vulcan hadn't tampered any with Jim's mind. Only shared his memories with the very young captain-to-be.

"Those people you grumble about when we're shopping in the Nexus." Amateurs, Felix always so disdainfully calls them. Jim honestly thought he was just being arrogant but there seems like there might be a reason behind it after all. "You've always seemed like you were careful about this though."