I agree that this song is most likely about longing for heroin. As mentioned above, he uses the water/heroin analogy in other songs like "Cool Waves," "Lord Let it Rain on Me," "Feeling Just Fine (Head Full of Shit)," etc.
also, the word in the final verse is "bay" rather than "babe." It is much easier to discern on Playing with Fire and in several live versions.
I agree that this song is most likely about longing for heroin. As mentioned above, he uses the water/heroin analogy in other songs like "Cool Waves," "Lord Let it Rain on Me," "Feeling Just Fine (Head Full of Shit)," etc.
also, the word in the final verse is "bay" rather than "babe." It is much easier to discern on Playing with Fire and in several live versions.