After Kailen spent some time with his loved ones, he made the longevity elixirs for the non awakeners among them. They could literally live forever as long as someone didn't kill them. Of course, Kailen would not permit something like that to happen.
As for the awakened, as long as they cultivated, their life span would always increase. He decided it was not necessary to make some for them. However they insisted they won't have anything to lose for taking some anyway. He made some for them too.
After that, Kailen learnt about the current state of the universe during the five years he was in seclusion. Kailen learnt that the vimodials had become more active during this time. Their assaults were becoming increasingly powerful at the Frontlines.
