What does it mean to dream about chain?
A chain usually points to what binds or links you, whether bondage or a connection you cannot break, so notice whether it felt like a burden or a bond.
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 a chain as restraint and the tension of being held against one's will, the curb on desire made into iron. Breaking it can express the wish to be free of what binds.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung might see a chain as a link between parts of the self or a bondage the psyche must recognise and outgrow. Whether it confines or connects depends on what you are bound to.
Jungian concept (our summary).Modern
Continuity ties chains to waking feelings of being trapped, obligated, or tied to a situation. Being chained often echoes a real sense of constraint you long to break.
Continuity hypothesis (our summary).Mythological
The bound figure runs through myth, from Prometheus chained to the rock to the great wolf fettered by a magic cord, and the breaking of chains marks deliverance. To be in chains was to be set against fate or held by it.
Rosmerta Publishing editorial synthesis (after Bulfinch; Brewer).