There had never been a greater scholar angel before Jin. When Jin had his memories back, he got to know this particular fact. Jin would have been a greater angel. He had the potential. Seth told him that some angels might kill him. However, it was also true that most angels wanted him to live because of his ability to break spells that were seemed unbreakable.
No spells are unbreakable- Jin believed. Perhaps it was this belief that helped him break those spells.
"If I have my memories, why can't I use my ability?" Jin asked Seth during dinner.
"Having your memories is not enough. You need something more," Seth said automatically as if he answered the same question many more times. Did Nes ask the same thing?
"Some rituals," Nes muttered. She finished one steak and was now eating another. She never ate this much. Jin hoped she would not get food poisoning or diarrhea.
"What rituals?" Theo asked.