Mine is the final shot of "Balance of Terror": Kirk has just consoled Angela (to the extent she needed it; she already had a new guy by the time of "Shore Leave") and, after a moment to reflect on what's been one hell of an episode, he turns and exits the chapel - and just as he leaves, the music switches to the main theme of "Where No Man Has Gone Before" (energetic, neither major nor minor, a triangle jangling throughout) and suddenly he's surrounded by a wide variety of crew members all going somewhere purposefully, and of course he's doing so himself. For those few minutes he is just a part of his crew. And it ends beautifully: He walks (briskly) offscreen while the camera keeps moving backward and we continue to see everyone else going both ways down the corridor.