To dream of lightning represents unexpected or sudden changes in your life. Sudden realizations or emotional changes. Lightning may also reflect situations that have been activated or initiated. Alternatively, lightning may also reflect your feelings about how quick and effective something is. Problems being solved quickly without any questions. Emotional shock or sudden unexpected events. Inspiration or sudden great ideas.
Negatively, lightning may reflect a shocking turn of events. Feelings about how dangerous or irreversible sudden changes are.
Consider the color of the lightning for additional meaning.
Blue lightning symbolizes sudden changes are that very positive. Possibly reflecting feelings about something being the best thing that every happened to you. Disbelief at how positive a sudden a big change or new beginning is. Feeling shocked that something terrible has ended. Alternatively, it may reflect the intention to resolve a negative situation as quick as possible.
To dream of dark green lightning represents a sudden change in your life that is caused by selfishness or someone else's arrogance. Fast acting problem solving motivated completely by selfishness. Negatively, green lightning may reflect situations where someone powerful has been embarrassed and is taken shockingly quick action to correct it.
To see red lightning represents sudden changes in your life caused by negative intentions or negative situations. Feeling surprised by something dangerous or evil. Quick action taken by you or someone else when angry. Quick retribution by you or someone else that is a "total asshole." A shockingly fast negative turn of events.
Example: A woman dreamed of seeing her husband's penis with a lightning symbol on the head of the penis. In waking life she had left him, was pregnant, and was beginning to feel that staying with him for the sake of the kids was a good idea because he could take care of the bills faster than she could on her own. The lightning symbolized her feelings about how quickly and effectively her husband could take care of the finances.