For most Extraordinaries, consecutive promotions are impossible.
Every time they accumulate Spirituality, it comes with subtle contamination and influence, peaking after the promotion ceremony.
Even if they could successfully advance, there would still be certain issues.
For example, Lilliatte's hallucinations are considered relatively mild.
In this state, Extraordinaries often need various methods to soothe these effects; besides a few special techniques, the most widely recognized peaceful and stable approach is to consume time and slowly adapt.
Only after they have completely adapted can they accumulate Spirituality again and climb up the Essence!
Of course, it is not impossible to disregard this contamination and influence and directly advance after promotion, but becoming mad, twisted, and even losing control of one's body and transformation... is inevitable.
Aaron has seen examples of this, such as the 'Beasts of Darkness' of the Black Sun Sect.
