Tommy freely travels between Earth and Equestria, the ponies freely travel between Earth and Equestria; and Tommy is struggling to accept whether it's real, or all a vast illusion.
Add'l Info:
While the story is labelled as a "Comedy," it features several instances where a "Sad" tag may have been appropriate. Due however to the intent of the story's thematic elements and the work as a whole, the term "Dark Comedy" may be applied.