A wall in dreams usually symbolizes limitations, obstacles, and boundaries. There is an obstacle hindering your progress. Consider the height of the wall. If there's a hole in a wall symbolizes failure.

To dream that you jump over a wall, suggests that you will overcome obstacles and obtain your desires.

To demolish or break down a wall, indicates that you are breaking through obstacles and overcoming your limitations. You may overthrow your enemies. It also represents a desire for freedom.

To dream of hiding behind a wall, suggests that you will be ashamed in acknowledging your connections.

To dream that you are walking along the wall means you are undergoing some mental conflict.

To dream that you are building a wall represents that you are in need of some privacy. Perhaps you are protecting yourself from some situation or people.