The explosion in a dream is the release of an inner source of pressure. The explosion may represent repressed anger, rage, frustration or fear coming to surface.
Anxiety, stress and repressed emotions are common in dreams. The blast may signify that the dreamer is experiencing a very high state of pressure in some area of their life and they need to overcome this pressure.
An explosion in a dream may symbolize our inner emotions that are uncontained or raw. It could represent something that is exploding outward out of control or it could be seen as a natural disaster or even a bomb going off.