The earthquake is the shaking of the whole material foundation within a person, the moment the old structure of the flesh and its fixed habits breaks apart under the rising force of the spirit. The thunders and lightnings are the sudden discharges of higher energy through the body, the flashes of awakened power and the deep sounding voices of consciousness moving where they had long been still. This is the great inner upheaval, the collapse of the settled earthly self, more violent than anything the person has known because it reaches the very ground of their being.
When the light finally rises with full strength, the entire lower nature quakes and cracks, and the fixed order a person built out of the flesh gives way so a new state can stand.
Earthquake: the shaking and breaking of the material foundation within a person, the collapse of the old fixed self of flesh
Thunders: the deep sounding discharges of higher energy through the body, the voices of awakened consciousness
Lightnings: the sudden flashes of spiritual power breaking through the darkness of the lower nature