Ever since An Xin had begun cultivating Doom Absolute Eye, she had developed an immense interest in this divine ability.
She felt that this divine ability had endless marvelous uses, that it was not as simple as mere doom, and she also cherished the chance to be taught by Gu An alone.
Gu An felt that An Xin truly had hope of mastering the Immortal Emperor Pupils. The reason he had taught the Immortal Emperor Pupils only to An Xin was because her comprehension was constantly improving, and that rate of improvement was something no one else could compare with.
She was growing into another An Hao!
As Gu An watched Golden Pole God teach the geniuses of the mortal world, he expounded the Dao to An Xin, helping her better enter the state of comprehending the Immortal Emperor Pupils.
At the same time, he pondered when he should go and make his breakthrough.
For the next breakthrough, he did not plan to improve his Daoist arts. Instead, he would break through directly.
If he improved his Daoist arts first, when would there ever be an end to it? At present, he felt that his own were still quite powerful, and not long ago, he had also comprehended the Great Dao of Strength, making his methods for overcoming tribulation even stronger.
Of course, no matter which method he chose, it would consume a tremendous amount of lifespan. He could not judge which method was better. In any case, all he needed was to accumulate enough lifespan.
Rather than think about which method would save more lifespan, it was better to store up more lifespan.
Using two trillion years of lifespan to break through should be steady enough.
If that really did not work, he would wait until he reached three