Some songwriters advise us to give a song room to breathe, give it space, and make it less busy.
While I agree this good advice, I also like to think - give things a chance to "sink in".
Often listening to lyrics is like drinking from a fire hose. You can't do it, so plenty of water doesn't make it down your throat
To avoid this, we need to meter out the lyric so it gets absorbed by the listener's brain, not discarded because the listener isn't ready for more information.
A repeating chorus, a musical interlude or even a stop or breakdown in the song can give the listener a break.
Is there a poignant line in the lyric of your song?
Is there a climax in the storyline?
Is new information flowing too fast for a typical listener to keep up?
If so, add some room to allow things to sink in. You'll make a better connection to your listeners if you do