Nathaniel Hawthorne said this quote
“ It was no wonder that they thus questioned one another's actual and bodily existence, and even doubted of their own. So strangely did they meet in the dim wood that it was like the first encounter in the world beyond the grave of two spirits who had been intimately connected in their former life, but now stood coldly shuddering in mutual dread, as not yet familiar with their state, nor wonted to the companionship of disembodied beings. Each a ghost, and awe-stricken at the other ghost. ”