In more recent centuries , many authors have referred to the state ; Edgar Allan Poe , for example , wrote of the `` fancies '' he experienced `` only when I am on the brink of sleep , with the consciousness that I am so . ''
In more recent centuries , many authors have referred to the state . Edgar Allan Poe , for example , wrote of the `` fancies '' he experienced `` only when I am on the brink of sleep , with the consciousness that I am so '' .