Li Hu felt like a bit of a clown right now; he had been worried previously that Su Tu's Heart and Spirit height wasn't sufficient. He had prepared a bunch of methods to help Su Tu undertake Dao Observation ahead of time, aiming to close the gap between Su Tu and other martial artists of the same period.
After all, in Li Hu's eyes at the time, although Su Tu's physical talent was astounding, he had only just come into contact with Martial Arts Dao. The improvement in Heart and Spirit height required various aids, in addition to just learning the art.
They hadn't mentioned Heart and Spirit Dao Observation to Su Tu before because they all assumed that Su Tu's Heart and Spirit height was surely insufficient.
