What does it mean to dream about earth?
Earth often pictures grounding and the foundation of things, the solid ground you stand on, or the soil where growth and burial both happen.
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 earth as the maternal and nourishing, the ground that receives the seed and the body alike. Whether you plant in it or are covered by it points to very different feelings.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung saw the earth as a deep image of the grounding, instinctual base of the self, mother of growth and of return. To be in touch with it can mean coming back to what is real and rooted.
Jungian concept (our summary).Modern
The continuity view ties earth to waking thoughts of stability, security, and being grounded, or of getting one's hands dirty in real work. The feel of the soil often mirrors how settled you feel.
Continuity hypothesis (our summary).Mythological
The earth was honoured as a mother across the ancient world, source of all that grows and the place to which the dead return. Soil held both the seed of life and the grave.
Rosmerta Publishing editorial synthesis (after Frazer; Bulfinch).