It was a Cultivation Technique that led all the way to the Nascent Soul Realm.
Bai Tongtong's explanation included the Spirit Awakening Method, the Qi-Introducing Technique, and the Meridian Passage Technique for the Qi Refining Three Realms,
as well as the Dharma Gates for the Dao Foundation and Nascent Element Realms.
As for the content regarding the Nascent Soul Transformation Level,
that was unknown.
This was only natural.
Bai Tongtong herself was merely a Cultivator who had just entered the Second Layer of the Dao Foundation Realm.
Her ability to obtain the Dharma Gates for the Nascent Element Realm so far in advance was solely because her father was an Elder of the Dharma Transmission Hall.
If not for that,
ordinary Disciples had to at least reach the Peak of the Dao Foundation Realm, then undergo a review by the Sect's Elders, before they could be qualified to obtain this part of the Dharma Gate.
'After Nascent Element, is it Nascent Soul Transformation?'
