I could teach you to dream, oooh
On the surface, one would believe that Abel wants to teach this girl (or the listener) how to “dream,” as in set high goals to meet one day, as Abel has come to do himself throughout his music career thus far.
The most likely meaning of this line begins with The Weeknd reiterating how he can teach this girl the different aspects of his “lifestyle”. From getting drunk to, mostly, getting insanely high, Abel’s an expert who’s capable of disseminating this lifestyle to his girls.
In a larger metaphor, Abel’s “fans” could be replaced with the “girl” to describe how The Weeknd can show us imaginative creativity through his music considering how unique of an artist he is.
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