That is the pure white world reflected in the pupils of the Last Bishop—
Henceforth, the plan for Heaven commenced.
Solo custodian of Heaven for thirty thousand years.
....
Time began to accelerate.
Radiant Era year 29900.
"From now on, you shall be called Merlin Andre."
....
Radiant Era year 29910.
"From now on, you are only allowed to perform magic with your toes."
....
Era of Chaos minus 25 years.
"From now on, you take this shift. I'm off duty heeheehee."
In the final years of the Radiant Era, amidst Merlin's numerous attacks on Floating Wood, the Last Bishop resigned from the position of Holder of Heaven, passing the role of Heaven's gatekeeper to his disciple.
He had lived for thirty thousand years, from the Era of Chaos through the Radiant Era, but the new era no longer provided a reason for his continued existence.