Beautiful Dreamer

Tied with “Hard Times” as my favorite Stephen Foster song, I’d say. This is said to be the last song he wrote before he died at age 37. Both the music and the lyrics hint at a serenity removed from this life...
"Beautiful dreamer, wake unto me, / Starlight and dewdrops are waiting for thee. / Sounds of the rude world heard in the day / Lulled by the moonlight have all passed away..."
...did he sense that he was soon to leave this world and its cruelty behind?