The word "twist" has many meanings, one being "a curled piece of orange or lemon used to flavour a drink".
So "you'll never be more than twist in my sobriety" says: the journey of my life is bleak, prim, proper, reading my improving books and avoiding the temptation you reject by force of my will; I am imprisoned in chastity by my clear conscience; you were a brief interlude, a small spot of flavour but I have seen the light and that is all you will ever have been to me.
The word "twist" has many meanings, one being "a curled piece of orange or lemon used to flavour a drink".
So "you'll never be more than twist in my sobriety" says: the journey of my life is bleak, prim, proper, reading my improving books and avoiding the temptation you reject by force of my will; I am imprisoned in chastity by my clear conscience; you were a brief interlude, a small spot of flavour but I have seen the light and that is all you will ever have been to me.
Sorry, that should have been "...rejecting the temptation you represent by force of my will..."
Sorry, that should have been "...rejecting the temptation you represent by force of my will..."