Pastillero literally translates to "pillbox" or "medicine organizer". It's an interesting and somewhat unusual word to find in a rap song, making it memorable.
In the lyrics, the artist mentions, "Mi vida cabe en 3 Rimowas, 2 LaCie y 1 pastillero" (My life fits in 3 Rimowas, 2 LaCie and 1 pillbox). This line cleverly uses the pastillero to symbolize the essential, perhaps even illicit, elements of his life that he carries with him, contrasting with the more luxurious items like Rimowa luggage and LaCie hard drives. It hints at a deeper, more personal story within the song.
"Corintios 13:12" takes its title from 1 Corinthians 13:12, the Bible verse about seeing life "through a glass, darkly." It's not a religious song. That verse gives its name to Cruz Cafune's own crew, and the reference becomes their calling card, right down to the dog-eared page he mentions near the end.
Over the track he raps about flexing designer luggage, a chauffeured Range Rover, Harrods shopping trips, a bulletproof GLS 600 and enough Jordans to fill a closet, closing out his verses on his crew and his family.
Westside Gunn's guest verse switches scenes completely, to dealing on the corner, guns, designer streetwear and a "we all got Glocks" hook about staying loyal to your own crew when things get dangerous. Both halves are ultimately about the same thing: flexing status and staying alive, just from very different sides of the world.