"Man…he's absolutely broken." Inala said as he stared at the vegetative state of Brangara, one that couldn't despite his Spirit Container circulating Prana across his body.
Prana had the capability to bring one to their natural state eventually. And the higher the quality of Prana one possessed, the faster this process occurred. However, in Brangara's case, that was no longer applied to his memory, for every piece of data stored in his mindspace had been extracted by Virala.
Therefore, even if Brangara's Prana wanted to recover his memories, it couldn't, as it no longer had any information to feed his brain. However, that was the basic understanding till now as Inala used Perfect Biome Domination to observe Brangara, 'He's a living Major Treasure. There's no guarantee that he cannot recover his memoires through some reason.'