Separated by a chaotic distance, Han Yi couldn't sense the other's aura, but judging from the speed, the opponent should be at the second stage of the Tao Realm.
Because its speed was slightly weaker than that of Xuan Zang Taoist Ancestor.
Xuan Zang Taoist Ancestor was at a high-stage within the second step of the Tao Realm; the opponent was weaker than Xuan Zang Taoist Ancestor but was much faster than him, which led Han Yi to deduce that the opponent was at the second step of the Tao Realm.
In fact,
Within the three steps of the Tao Realm, the second and third steps each have their own titles; the second step is called Taoist Fruit because the tao fruit is fully condensed, while the third step involves the fusion of Taoist Fruit and Tao Realm, hence it also called Outer Path.
Above the Taoist Fruit and the Outer Path, there is the peak of the Tao Realm, which is the complete fusion of Inner Path and Outer Path, also known as Harmonization.