After swimming for a minute, Yuan immediately gave up on trying to swim normally and propelled himself forward using spiritual energy.
Not only did this help him travel many times faster but it also protected him from the cold. However, because every drop of water in the Sword Pond is covered in Sword Aura, it would shred his spiritual energy constantly.
Fortunately, he could recover his spiritual energy faster than the Sword Aura destroyed it.
About a hundred miles down, the temperature in the Sword Pond changed drastically.
It was no longer cold, but scorching hot, almost as though he was swimming in lava, and it burned through his spiritual energy like a hot knife in butter.
This sudden change in temperatures caught Yuan off guard, and he had to quickly adjust to it.
The temperature was so hot that it constantly burned his skin. If it weren't for his regeneration ability, he would definitely die if he continued diving deeper.