When a cultivator breaks through to the Violet Palace realm, there is a certain process he needs to follow.
The reason the Violet Palace realm is known as the watershed in separating cultivators from experts is related to this process. Unlike breaking through from the Qi Gathering realm to Spirit Sea realm, where the qi is converted into a liquid state from gaseous state, the break through to the Violet Palace realm involves a lot of things to be done.
The first and foremost requirement for a cultivator breaking through to the Violet Palace realm is that their Spirit Sea must grow to the fullest extent. Throughout the Spirit Sea realm, a cultivator condenses their liquid spirit qi further and further and refines them.