Lan nodded and started to speak.
What Milton Cheney said was actually pretty simple, but there is no wrong in his explanation.
"Whether or not to merge with a rule determines whether a Level 4 Wizard can become a Level 5 Wizard."
"The limit of a Rules Space also determines whether a Level 5 Wizard can become Level 6."
Lan spoke.
Without waiting for Milton to speak, Lan continued:
"The pure white sea region that you saw in the South Guardian Sea actually represents a Wizard's External Spiritual Sea."
"And the External Spiritual Sea of a Level 6 White Wizard, it represents his 'Rules Space'."
"But this Rules Space, consists of more than one rule."
As Lan's voice trailed off, an expression of contemplation appeared on Milton's face.
This conversation had somewhat exceeded Milton's comprehension.
It's quite normal, after all, Milton is just a Level 4 Wizard, Level 5 is still quite far-reaching for him.
However, Lan's words had already implicated a Level 6 Wizard.