The Chi-kau

All those born within the Vae Dynasty are born of a neutral clan status. They enjoy their youth playing, learning and making friends that may stay with them their entire lives. It is the most peaceful time for all children of Vae. This lasts until they come of age. There is no set age; it is a state of the soul telling them they are ready. A spiritual presences lets the youngling know when they are ready.
This is when one attends The Chi-kau. Alongside your closest and dearest, you walk beneath the blossoms. As the petals fall one will find the blossoms, that belong to the clan you'll be accepted into, fall upon your shoulders and hair.
The rest would fall about your feet. Swirling up and away on a breeze caused by your presence. Each grouping of petals taking their own direction. 
You are now chosen by a clan and next comes a ritualistic marking of one's soul. Sorcerers from all over the Dynasty come and perform the ritual and the process leaves the youngling exhausted for days afterward.
During this ritual, the spirit is encouraged from the body, suspended before the Sorcerers. A mark of the chosen Clan is put upon the vulnerable spirit before being returned to its physical form.
Once the ritual is finished, the youngling is given Druid Water, the purest form of it, it heals the magical spirit mark. 
There are also those known as the Wakai, those that no blossoms chose. They tend to the everyday life of the dynasty, farming, construction, economics etc working for the clans in one form or another.
The Wakai is a life of giving to the dynasty without the dangerous roles of the Clans and is still as respected as much as any in a given Clan.