What does it mean to dream about pen?
A pen often stands for expression, record, and the power to set things down, so it helps to ask what you were writing and whether the ink ran or failed.
Four ways to read it
Each reading below comes from a named tradition and a cited source, so you can see where it came from and decide what fits your dream.
Freud
Freud would read the pen as a tool of making one's mark, bound up with creation and assertion. A pen that will not write can express anxiety about being unable to say what one means.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung might see the pen as the means by which the self gives form to its inner contents, the instrument of expression and decision. What you write can show what the psyche is trying to make real.
Jungian concept (our summary).Modern
Continuity ties the pen to waking concerns about communication, work, and committing to choices. A failing pen often echoes a real difficulty in getting your meaning across or signing off on something.
Continuity hypothesis (our summary).Mythological
The scribe's pen wrote the fates of mortals in many traditions, recording deeds and destinies in the great book. To set words down was long held to fix them, giving the written word a binding power.
Rosmerta Publishing editorial synthesis (after Brewer; Bulfinch).