Let's briefly discuss the Levels and corresponding Realms as mentioned by the cultivators.
Level 1—10, ordinary people.
Level 11—20, Dao Foundation Realm.
Level 21—30, Mysterious Barrier Realm.
Level 31—40, Heart Move Realm.
Level 41—50, Guardian Realm.
Level 51—60, Void Reaching Realm.
Level 61—70, Path Inquiry Realm.
Level 71—80, Feather Transformation Realm.
Level 81—90, Taiching Realm.
These are the current Realms explained, and more information will be supplemented as the plot progresses in later stages.