Ben was close by, monitoring both Kytana as she navigated through the Force, and their surroundings as well. Not that he expected an attack from any of the inhabitants on the station. No, he was wary of hidden traps left behind by Higgs, for example, or snares within the corruption itself, like eddies within a turbulent river that could pull the unsuspecting down with them.
Kytana was very much the opposite of an unsuspecting swimmer in a river too fast for her, but Ben still felt that he should keep watch. So he sat opposite his friend, mirroring her meditation pose, but not nearly as deep within the Force as she was. Every so often, he would let his mind brush against hers to let her know he was still there, acting as an anchor if she should need it, and he kept watch.