There was a powerful gust of wind at the highest part of the sky. This wind was the strongest wind that could only be found high up in the sky. If anyone traveled at a high speed under it, they would find it incredibly hard to endure through it. Their bodies would start feeling as if they were being torn apart.
This was the power of the wind.
Even Su Ming, who had the Provenance of Wind in his body and also stored wind inside body, found it hard to last for a prolonged period of time under this high wind. Once half a day had gone by under his continued charge, he found that it was already too difficult for him to continue, and with a turn, he charged towards a lower altitude.
To Su Ming, the wind in the sky became stronger the higher he was. On the other hand, if he was at a lower altitude, the wind would be significantly weaker.