And all I had to give her was my pipe dream
Of how I'd rock the mic and make it to the bright screen
Pac’s mother did so much for him and he realizes how hard it was for her to raise him. as a child all he could give her in return were his dreams of being a famous rapper
Also, possible play on words with pipe and rock. He’s talking about his mom here who, later in the song, he blames for making his brother a crack baby.
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