Lightning Generation

"There is energy all around us. The energy is both yin and yang; positive energy and negative energy. Only a select few firebenders can separate these energies. This creates an imbalance. The energy wants to restore balance and in a moment the positive and negative energy come crashing back together. You provide release and guidance, creating lightning."

- Irounaku telling Seireitou about Pure Lightning Generation

Lightning Generation is a technique within the Vessel of Ragnarok, with which they are able to produce and direct a bolt of natural lightning from their fingertips.

Method and Effects
Generating lightning involves a circular motion with the arms. Mentally, it involves a complete absence of emotion and peace of mind, and physically it requires separating the energies of yin and yang (also an interpretation of positive and negative electric charge). When the forces collide, the Vessel only guides, rather than controls, the lightning's direction. It appears that if it is redirected in some way, a natural lightning blast will be fatal to any living being. Even in cases where a person survives a strike it seems they will still be critically wounded.

Lightning Redirection
"If you let the energy in your own body flow, the lightning will follow it. You must create a pathway from your fingertips up your arm to the shoulder, then down into the stomach. The stomach is the source of energy in your body, it is called the sea of Chakra, or in your case it is more like a... vast ocean. From your stomach you direct it up again and out the other arm. The stomach detour is critical, you must not let the lightning pass through your heart, or the damage could be deadly."

- Irounaku teaches Seireitou how to redirect lightning

Lightning redirection is a technique within Vessels, allowing them to absorb lightning into their body as energy, then release the lightning in a more desirable direction. The way it works is that they redirect force rather than oppose it head-on. Lightning redirection works equally well for natural and elemental lightning chakra.