That's right. I, along with six others, keep Devaloka from falling. Even if one of us died of old age or... other reasons, there were still others to keep it afloat until we could be reborn again in our place.

[Himmel only mentions "other reasons" because he's had the sinking suspicion the elders are growing more and more wearisome with his ideals and might just decide to scrap him - but he isn't going to back down from his thought that united worlds would be better.]