Because a vision softly creeping left its seeds while I was sleeping.
11 seconds sound clip from the Old School movie soundboard.
You can hear this line at 00:54:05 in the Blu-ray version of the movie.
Quote context
[...]
- No!
- Hello darkness, my old friend. I've come to talk with you again.
- Because a vision softly creeping left its seeds while I was sleeping.
- This is the most beautiful day.
- Within the sound of silence.
- I've missed you, Frank. I'm so glad you're back.
- I've missed you too, honey. You look gorgeous.
[...]