(Broken Memory 1)
Back on Earth, previous life.
"BAHAHAHA! Yes! To prove your allegiance to the company, you definitely need to complete the candleburn ritual!!"
The candleburn ritual is essentially a torture method that the company disguises as a welcoming ritual for newcomers.
They used literal torture to ensure that the newbie joining their group wasn't a spy or something.
If the newbie is a spy, he will reveal all, and if not, he will obediently follow the procedure.
It was a crude method, but that's how Jareth joined that shady company and became an obedient dog of the boss.
He did what he was asked of, and for the sake of impressing the father of the person he loved, Jareth went through great troubles.
Jareth wanted to get the approval of Shiina's father, and a poor guy like him didn't have many methods to do so.