Apart from the Void Shuttle Skill,
He Song devoted considerable effort to the two Nascent Soul Skills, one offensive and one defensive, that he had previously chosen.
During the days of his seclusive cultivation,
He Song, aside from pondering over the Void Shuttle Skill and his own cultivation,
Spent most of the remaining time on these two Nascent Soul Skills, one offensive and one defensive.
Because He Song knew
That these two Nascent Soul Skills were key for his future travels outside.
Fully comprehending these two Nascent Soul Skills would give He Song confidence when facing other Nascent Soul cultivators.
And if he exited his seclusive cultivation without fully understanding these two Nascent Soul Skills,
Facing other Nascent Soul cultivators, He Song might end up like the Nascent Soul cultivator from the Thick Earth Sect years ago, trapped and eventually dying.
A Nascent Soul cultivator without Nascent Soul Battle Power