To dream of a bomb represents a waking life situation with the potential to be explosive, dramatic, sudden, or intense. Good or bad, a situation in waking life could be the source of a powerful change in your emotional state.
A bomb may suggest facing consequences, a situation worsening, or something in your life becoming a lot more powerful.
An exploded bomb symbolizes a waking life situation that has intensified.
Example: A young boy dreamed of feeling that a bomb was about to go off. In waking life he was fearing that his father was about to lose his temper and assault his mother.