Absence of a Brain
Scholars have said that if a person sees themselves without a brain, it may indicate their ignorance and lack of intellect. It was also said that the brain in a dream might symbolize a small, stored, pure amount of wealth.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.