Lightning in a dream often marks a sudden flash of insight -- a realization that arrives all at once rather than through gradual thought, and can feel as startling as it is clarifying. Being struck by it may reflect a shock that's reordered your priorities, a revelation you can't unsee once it's happened.
When you are loathed use Venus who has very strong influx and quick response in this and other aspects, and means renovation and growth. - Picatrix (Andalusia, ~1000.AD)