This deserves to be an archetype. Seeing one's past as a dream is of course exactly what dreams actually are but it graces the past with the cleansing of dreams in converse.

This is a great poem. Thanks Frank. Dreams are well studied in sleep research. Here is a current explanation of why we sleep (ans: to relax the computationally destructive neural noise built up through a day of activity):

https://medium.com/liecatcher/how-your-brain-computes-41ebe7428ff9