Unlike the comic settings, both the Guardians of the Galaxy and Avengers 3 have described the origins of the Infinite Gems—fragments of singularities from the Big Bang, collected by the four great Divine Spirits: Eternity, Death, Infinity, and Entropy.
Infinite Gems indeed possess immense power and can reshape the rules of the universe, but in the cinematic universe, they are still unable to transcend these four foundational figures.
Previously, the Black Death Sword had already caught Tao Yu's attention, and now he didn't expect Thanos to be connected to 'Eternity' and 'Death' as well.
"Have they been polluted?"
Tao Yu wanted to confirm this with Thanos.
"Probably not, but they seem to have had disagreements. 'Eternity' likely wanted to strip away all the negative aspects susceptible to corruption, so 'Death' was imprisoned."
Thanos's words also reminded Tao Yu of Luke's earlier failure to locate their soul—perhaps it was related to 'Death' being imprisoned.