When Gravis came to the part where he started madly looking for power in the Lightning Tower after Jaimy's assault, Lasar and Old Man Lightning finally understood why Gravis' lightning felt so strange and powerful.
"So, let me get this straight," Old Man Lightning said, interrupting Gravis. "Due to your Elemental Synchronicity, you were able to split the Life Energy from lightning, therefore creating lightning with 100% Destruction Energy?" he asked.
Gravis nodded. "Yes. On top of that, since the lightning didn't have a will, I could move it around however I wanted without completely dying."
Old Man Lightning and Lasar watched Gravis with open mouths. "That's incredible!" Lasar said. Gravis realized the dream that every previous Sect Master of the Lightning Sect had. No one had ever reached pure Destruction Lightning before. To normal cultivators, it just wasn't possible to split the Life Energy and Destruction Energy inside lightning.