I can see where the marijunana references are, but I really do think they were talking about a woman. I actually think Mary was a hooker, which is why all of the men in the bar were "touched by Mary just like you".
I think that when he was younger he went to Jamaica, and met this woman and spent a year with her. He didn't realize how much she meant to him until he moved back home. Despite physically moving on with his life, he never got over her. No matter how much he smoked to try to forget her, she was always in his head.
He finally realized he needed her, and when he went back for her she had died.
I can see where the marijunana references are, but I really do think they were talking about a woman. I actually think Mary was a hooker, which is why all of the men in the bar were "touched by Mary just like you". I think that when he was younger he went to Jamaica, and met this woman and spent a year with her. He didn't realize how much she meant to him until he moved back home. Despite physically moving on with his life, he never got over her. No matter how much he smoked to try to forget her, she was always in his head. He finally realized he needed her, and when he went back for her she had died.