They used to refer to it as... The ritual of Bathing on the Face of the moon
That ritual is performed every three years at the top of the Rose Garden building, which is on L-05 and can be attended by anyone. Not all creatures will come. Most of the creatures who come are only those who want to pray and those who want to meet directly with the Queen. They said this ritual was an opening to enter the Queen's Palace at L-01, at the bottom of the soil layer.
A place where not many eyes can see and not many voices can be heard. Only some, or even only selected creatures, can enter the palace.
They say that those who survive will be blessed with all things. They say that they will meet the Queen, and their world will be more peaceful. Meanwhile, those who are unable to reach the palace will eventually become victims and end up being the Queen's food.
Those two things are not something that is detrimental to the creatures there.
