AETHER/LUMINE HOMEPLANET

Aether and LUMINE hail from the destroyed planet of pegana The place where akivili took off the astral express Akivili IS Probably a person Who was close to aether and lumine and DESIRED TO ROAM THE STARS So THEY ASCENDED TO AEONHOOD and granted Aether and lumine the power to travel imaginary tree and quantum sea( I suppose since teyvat is Maybe a bubble world) and long life span (old as aeon as mentioned by aether as he witnessed birth and death of stars)