It wasn't because Yanis was a bad teacher, it was that Yanis was the kind of "mentor" who only laid the foundation for students, cultivated learning habits, taught learning methods, and general principles – the sort of "teach a person to fish" type. She indeed taught true "Inner Strength", but the effects were not immediately apparent.
It was a common issue among the Longevity Species.
She always assumed that her student, Isabel, would be able to endure loneliness, quiet her mind, so she decided on each matter from a perspective of infinite foresight – fortunately, Isabel was exactly like that.
Aiwass was the complete opposite.
He was the type of "Counselor" who would offer different solutions to different problems directly.
If Isabel didn't proactively ask questions or make requests, he wouldn't interfere with her self-study rhythm; but if Isabel had doubts, he would provide careful guidance, repeatedly drill her until the issue was fully resolved.
