Why did Ellie's father prohibit him from studying the Kabbalah?

Ellie's father prohibited him from studying the Kabbalah because he believed that such mystical teachings could lead to dangerous thoughts and distract from the more fundamental aspects of their faith. He felt that engaging with Kabbalistic ideas might provoke existential questions that were too challenging for a young mind, especially in the context of the severe trials they were facing. Additionally, Ellie's father wanted to protect him from unnecessary spiritual confusion during a time of crisis.