The main thesis of "Lord of the Rings: an allegory of the PhD" is that J.R.R. Tolkien's epic novel can be interpreted as a metaphor for the journey of pursuing a PhD degree.
Frodo, as the protagonist of the story, represents the PhD student on their journey towards completing their degree. He faces many challenges and obstacles, but ultimately perseveres and completes his mission.
The hobbits, with their love for simple pleasures and aversion to change, can be seen as undergraduates. The elves, with their wisdom and long lifespan, can be compared to professors. The dwarves, with their love for knowledge and crafts, can represent researchers. And the humans, with their ambition and desire for power, can be seen as administrators.
Just like how Frodo must overcome many challenges and temptations on his journey to destroy the One Ring, a PhD student must also navigate through obstacles and distractions while working on their dissertation. Both require determination, perseverance, and a strong support system.
Gandalf, as a wise and experienced wizard, serves as a mentor and guide for Frodo on his quest. Similarly, a PhD student may seek guidance and advice from their academic advisor, who has been through the process before and can offer valuable insights and support.