1. The document appears to be lyrics for a song titled "So Dat's What it Was! Pt.4" written by Murad Camarad Wysinger and several other artists. 2. The lyrics describe the artist doing their thing and achieving success, reflecting that "this is what it does" and "that's what it was". 3. The chorus repeats the lines "So this is what it does" and "So that's what it was".