As suggested by its name, the Thunder Breeze Pool contained wind and lightning elemental forces.
It was built by the first sect master of the Thunder Breeze Sect using various heavenly treasures as well as his own spirit energy. After that, he would inject a large amount of wind and lightning elemental forces into it every year until now. This tradition had lived on for more than a thousand years since then.
After the Thunder Breeze Sect disciples advanced to the Supreme Stage, as long as the sect master and the elders agreed, they could enter the Thunder Breeze Pool to cultivate.
However, because there was too much lightning and thunder forces condensed in the Thunder Breeze Pool, it had become extremely dangerous now. If one was careless, one would suffer a backlash and even die inside.