They start to make sense
The longer I'm at it

from Death Cab For Cutie – Lightness Lyrics on Rap Genius

Meaning

stare at something long enough and you begin to see things in it, continuing to look at the patterns, the writer begins to understand them.

To help improve the meaning of these lyrics, visit “Lightness” by Death Cab For Cutie Lyrics and leave a comment on the lyrics box