Lighting is a source of electricity. Fork lighting has jagged lines sticking out like a fork. Lighting can illuminate clouds.. Ball lighting is a bright flash of electricity. If lighting is about to strike somewhere that you are close to then you should not wait for the lighting to strike. You should run to the nearest place that you know. to be safe such as indoors. Lighting is a source of electricity that is very common. There are various types of lighting. Everyone has to be careful because lightning can strike anywhere in any countries near the equator especially Venezuela.