What does it mean to dream about pool?
A pool often stands for emotion held in a contained, manageable form, feelings you can enter and play in without being overwhelmed.
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 pool as water shaped to human use, feeling and desire held within set bounds. To swim in it can stand for entering pleasure or emotion safely. Note whether the water is clear and inviting or cold and uncertain.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung often linked water with the unconscious, and a pool is that depth made calm and contained. To enter it can mark a willingness to meet your feelings on manageable terms. Ask how deep you are ready to go.
Jungian concept (our summary).Modern
Under the continuity view, a pool may reflect waking thoughts about leisure, emotion, or a situation you are testing the depth of. Calm water can echo ease, troubled water unease. Consider what you are wading into and how safe it feels.
Continuity hypothesis (our summary).Mythological
The sacred pool and the still spring appear across traditions as places of reflection and of meeting with hidden powers, their surface a mirror between worlds. To gaze into the water was to seek truth. The pool keeps a trace of that quiet mystery.
Rosmerta Publishing editorial synthesis (after Bulfinch; Frazer).