This the new God flow, the Holy Grail niggas
Can't see me, Book of Eli, it's in Braille niggas

from T.I. (Ft. Pusha T) – I'll Show You Lyrics 1 on Rap Genius

Pusha’s flow is godly, as said here, and his verses are to him what the Holy Grail was to Jesus, i.e., imbued with miraculous powers.

In The Book of Eli, a blind man protects a Bible written in Braille. This continues the religious Christian explained above.

So, Pusha can’t be seen (bested), because his rivals are blind.

By now, it’s a verified motif for Pusha to add some Judeo-Christian references in his verses.

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