But what's the cost to live your dream, do you feel me?
Everything glittering ain't what you think it will be

from J. Cole – Blow Up Lyrics on Rap Genius

Meaning

J. Cole’s dream was to get signed by Jay-Z

To make it reality, he attended St. Johns to get close to Jay, waiting in the pouring NYC rain to give Jay-Z his mixtape

The second line is also a reference to the adage “all that glitters is not gold.” Both the adage and J Coles' line reference that sometimes promising things turn out to be something insignificant

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