Of course, Cain understood that the best way to fix his energy pool shortage was to evolve into the Divine Ascension Realm, open his Inner World, and gain access to Star Power.
Although the Nine Heaven Ego Destruction Tribulation was incredibly dangerous, Cain's willpower and soul force had grown immensely, and he was confident in his chances of success.
Cain's Astral and Essence Paths of Power had already reached the Peak Apotheosis Realm. Nothing stopped him from undergoing the Nine Heaven Ego Destruction Tribulation, pushing his willpower to the Third Realm and gaining the power to sever his soul in two, allowing him to become a Soul Realm's dual cultivator.
However, Cain's plans change after the fight in the underwater city of Kronos. He had decided to save the Nine Heaven Ego Destruction Tribulation for something special, so these two Gifts came at the perfect time.