It has been four hours, in the state of enlightenment his body was covered with thunder. This thunder wasn't just rumbling around his body, it was literally destroying him. This thunder energy was from his infinite energy, he lightened up the infinite energy with the concept of thunder, but it got out of hand.
Thunder represents destruction, and if you can't control it, it will be your demise. Fortunately, he possessed Giant Body Armor and Undead Bloodline, with these two, he was able to repair his body faster than the rate his thunder could destroy him.
This thunder lacks spirit, in other words, he needs some powerful source of thunder such as lightning crash to form the spirit of thunder. He kicked himself out of the black space, but under the effect of enlightenment, he couldn't move his physical body.