Lyrics of Live too fast blues/mercy sweet moan

Well i dream of a lady
Like an angel comes to me
And she cools me with water
Cause i'm scared of the heat
But when i'm gone lord have mercy on me
When i'm gone lord have mercy on me
Well i once held my promise
In the palm of my hand
And the twelve unopened letters
I should rest baby when i can ?
When i'm gone lord have mercy on me
When i'm gone lord have mercy, baby on me
Yeah when i'm gone lord have mercy on me
Yeah when i'm gone lord have mercy, oh, on me