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Ron Weasley: "I never remember my dreams, you say one!"
Harry Potter: "You must remember one of them."
Ron Weasley: "Well, I dreamed I was playing Quidditch the other night. What d'you reckon that means?"
Harry Potter: "Probably that you're going to be eaten by a giant marshmallow or something."
Harry Potter and Ron Weasley in Divination class, discussing dream interpretation[src]

A book on the subject of dream interpretation

Dream interpretation, also known as oneiromancy, was a method of Divination that involved analysing dreams. It was one of the oldest forms of divination.[1] It was covered at Hogwarts in the fifth year Divination class and was most likely part of O.W.L. teachings. The textbook for this subject was The Dream Oracle by Inigo Imago. Professor Sybill Trelawney considered dream interpretation to be "a most important means of divining the future." However, Harry Potter didn't seem to think it was particularly useful, as he usually made up dreams in the classes and also thought dream interpretation couldn't tell him what his dreams meant. Parvati Patil and Lavender Brown, on the other hand, appeared to consider this particular subject very useful, and were seen discussing their dreams very seriously in the first class they had on this subject. This was not surprising, though, as Divination was their favourite class and they were usually the most diligent students in it.[2]


Oneiromancy was taught to sixth year Divination students, at least in the 1989–1990 school year at Hogwarts School of Witchcraft and Wizardry by Sybill Trelawney.[1]

In September 1995, Harry and Ron had to keep a dream diary for a month as a part of their Divination homework because neither of them could remember or want to discuss their dreams.[2] Neither of them took this serious enough, and wrote down made up dreams, most of which are tragic events of themselves, due to Trelawney's liking of predicting Harry's death. She later told them to do it again for the next month.[3]


The word oneiromancy comes from the Greek root oneiros, meaning "dream," and mancy, meaning "prophecy".


Notes and references

  1. 1.0 1.1 Harry Potter: Hogwarts Mystery, Year 6, Chapter 34 (Final Preparations) - Divination Lesson "Dream Interpretation"
  2. 2.0 2.1 Harry Potter and the Order of the Phoenix, Chapter 12 (Professor Umbridge)
  3. Harry Potter and the Order of the Phoenix, Chapter 13 (Detention with Dolores)
B3C6M2 Trelawney's first Divination lesson in the trio's third year.jpg
Professors: Sybill Trelawney · Firenze
Known Seers: Calchas · Cassandra Vablatsky · Cassandra Trelawney · Gellert Grindelwald · Inigo Imago · Johan Hoffman · Liz Tuttle's mother · Mopsus · Professor Mopsus · Susie Sooth · Tycho Dodonus · Unidentified Canadian Seer · Unidentified female Seer · Unidentified male Seer
Textbooks: The Dream Oracle · Unfogging the Future
Methods: Astrology · Bibliomancy · Cartomancy · Catoptromancy · Crystal-gazing · Crystal ball · Dream interpretation · Fire-omens · Heptomology · Ichthyomancy · Myomancy · Ornithomancy · Ovomancy · Palmistry · Scrying mirror · Tarot cards · Tessomancy · Xylomancy
Divination at Hogwarts: Divination (class) · Divination Classroom · Divination staircase · Sybill Trelawney's office · Classroom 11 · Xylomancy (class)