People
My body has certainly wandered a good deal, but I have an uneasy suspicion that my mind has not wandered enough.
— Noel Coward

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker contrasts extensive physical wandering with a suspicion of insufficient mental wandering. The uneasy admission suggests that movement and experience do not automatically broaden thought. Its self-critical humour comes from applying the same word to two kinds of exploration and finding that they have not kept pace.
Context reviewed