Ling Tian had broken through to the Twenty-first Heaven of Near-Saint, and he'd done it before Chi Xue and Po Tian unsealed themselves. In other words, he'd advanced before triggering the final tribulation. It was an unexpected windfall. Ling Tian had already prepared himself for the possibility that he wouldn't break through again before Chi Xue and the others unsealed themselves, so his successful breakthrough was an undeniable surprise.
For Ling Tian, breaking through was naturally a good thing. It would not only let him have a greater impact on the Lord of the Universe during his tribulation, weakening its strength, but also make him safer in the Outer Realm and improve his chances of obtaining Primordial Chaos Qi. Greater strength would even give him a better chance of bringing Yu Ying safely out of the universe.
Ling Tian smiled faintly and didn't respond to Po Tian on that point. He muttered to himself, "Now all that's left is to wait for Chi Xue and the others to unseal themselves. I wonder when they'll do it, and whether I'll have a chance to break through to the next level first."
"You're being a little too greedy, kid. Breaking through to the mid-stage of the Twenty-first Heaven of Near-Saint was already an unexpected windfall. Thinking you can reach the next level before you and Chi Xue's group undergo your tribulations is practically impossible. After all, at your current level, every minor breakthrough takes several million years, and Chi Xue's group won't be able to hold out that long before unsealing themselves." Po Tian chided him with a laugh. Before Ling Tian could respond, he shifted gears. "But in any case, your strength can keep improving. Besides, you'll need to consolidate your cultivation next, which will still give you a considerable boost.