I didn't mean to try to force Xion in something. It's just that Scala ad Caelum is Latin and very similar to our Italian "Scala per il cielo" translated to stairway to heaven. Vector to the Heaven it's almost the same.No, but I do think everyone needs to take a step back from trying to shoehorn Xion into everything.
Caelum can be translated even to sky, hence a possible connection with Sora (for the one who doesn't no, Sora means sky)