What does it mean to dream about bag?
A bag often holds what you carry through life, your burdens or your resources, so it helps to ask what was inside and whether it felt heavy or lost.
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 container as a symbol of the body or of holding and hiding, what is kept private within. A bag that cannot be closed or is spilled can stir anxiety about exposure or loss.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung might see a bag as what you carry of yourself, the gathered contents of a life or a journey. A lost bag can point to a part of you mislaid, while a heavy one can show what you will not set down.
Jungian concept (our summary).Modern
Continuity ties bags to waking concerns about responsibility, what you must carry, and being prepared. A missing or overstuffed bag often echoes real feelings about your load.
Continuity hypothesis (our summary).Mythological
The wonderful bag of plenty and the bag of winds both appear in myth, holding gifts or perils that change the traveller's fate. What is carried in the sack is rarely only what it seems.
Rosmerta Publishing editorial synthesis (after Bulfinch; Brewer).