Wikipedia has written
Lightning is the electric breakdown of air by strong electric fields, which produce a force on charges. When these charges move through a distance, a flow of energy occurs. The electric potential energy in the atmosphere then is transformed into thermal energy, light, and sound, which are other forms of energy.
It just wouldn't make sense that this "God" could exist even though it can't be seen, felt or heard. That just wouldn't be logic. It's like waiting for nothing to happen, that's really how it is. Is that really worth the time? God can't exist simply.