It’s astounding like when I be rhyming
Always shining like the sun and moon

from Big Boi (Ft. Killer Mike & Little Dragon) – Thom Pettie Lyrics on Rap Genius

Meaning

Big Boi has consistently been dope as fuck like the moon and sun are consistently shining.

Also refers back to his diamond-encrusted chain from the previous line. It shines brightly and astounds the same way Big Boi does when he’s rhyming.

To help improve the meaning of these lyrics, visit “Thom Pettie” by Big Boi (Ft. Killer Mike & Little Dragon) Lyrics and leave a comment on the lyrics box