Scolding

How old was the Star Sand Saint?

Theoretically speaking, a Great Saint could live for three billion years. However, Saints would have to overcome an Immortal's Calamity every 100 million years. If they couldn't overcome this, they would have a portion of their lifespan severed. In fact, it was even possible that they might be directly killed. Even in the Celestial Realm—where one would possess an unlimited lifespan after reaching the Severing Mundane Tier—one would still be riddled with stubborn illnesses if they were unable to overcome their Immortal's Calamity. Eventually, these elites would pass away.

Thus, it wasn't certain that the Star Sand Saint could live for a full three billion years. Even if he could, he was already nearing that age anyway.