It was difficult for the winged people to gather their energy with the dantian. Even those who were inherently talented found it hard to gather their energy using the dantian before they were ten years old.
However…
The little winged child found it extremely easy to gather his energy after Ye Qingtang guided him along.
Ye Qingtang was slightly taken aback. The little winged person's words reminded her.
It was something she had overlooked all along.
Having lived more than 300 years, she could remember the developments over the past 300 years. 300 years was enough for major developments and changes to happen.
Many martial arts foundations were revised over the 300 years to become more stable and refined.
It was the same logic as when the winged people practiced gathering their energy. It was only brought up by a genius winged person after a hundred years.