Proper Xuan Sect, each had its foundation.
This Iron Toad Ancestor was a man born in the Da Xing Period, originally a hunter's son at the foot of Wudang Mountain. In the mountains, he encountered a mystical event, awakened his Divine Skills, and began his cultivation.
He was taught by Master Sanfeng himself.
The Great Xuan Dynasty was established only a century ago, and yet he was now one hundred and ten years old. Although his Dao was profound, his body had long since depleted its vital energy.
When ordinary people think, they consume their own primal energy. Hence, there is a saying about depleting energy and damaging the spirit, such as feeling hungry after intensive learning.
If one overthinks, it could damage the body.
Form and soul are inseparable as long as one is alive.