Careful what you wish for you might receive it he said
I see I said, jealousy I said
Got the whole industry mad at me I said
Then B.I. said,

from Jay-Z (Ft. Faith Evans & The Notorious B.I.G.) – A Dream Lyrics on Rap Genius

Biggie says that his death came about not because of his roots on the street but by the trappings of fame and fortune and the jealousy they inspire. Jay interprets this as being a warning; if Jay wishes for the same wealth and notoriety Big had, then he may be inadvertently be wishing for a similar death as well.

To help improve the meaning of these lyrics, visit "A Dream" by Jay-Z (Ft. Faith Evans & The Notorious B.I.G.) Lyrics and leave a comment on the lyrics box