Place it at the end of a scene as the final beat, after the claim it answers. For a lighter cut, lead in with the SpongeBob A Few Moments Later button first, then let this clip close the sequence instead of adding another effect afterwards.
About this sound
This clip is a single spoken question, 'What will you have after 500 years,' delivered as a standalone line lasting about five seconds. It lands as unsettling and reflective rather than funny, making a listener pause and think about time, loss and what actually lasts when everything else fades away.