It’s fairly simply. Tech just wants critics to understand his craft. He’s an artist and he can’t let people diss his music. His whole verse ways basicly about critics, so this is just a conclussion to the verse as a whole.
“Understand this” is repeated as an echo in the background.
To help improve the meaning of these lyrics, visit “Fragile” by Tech N9ne (Ft. Kendall Morgan, Kendrick Lamar & ¡MAYDAY!) Lyrics and leave a comment on the lyrics box