Leah Remini Opens Up About Growing Up in Scientology: 'Your Ego Becomes Extremely Inflated'

Leah Remini is out on a mission to let people know what it's like in the Church of Scientology. In fact, she wants people to know the truth "for the sake of children who are currently involved in it."

The former "King of Queens" star recently did a "20/20" interview - which will air on Friday, October 30 - and a new clip features the star opening up about what it feels like to be raised in Scientology, and how it ultimately affects the mentality of a child.

Talking to ABC News' Dan Harris, Leah Remini explains: "The mission is to save the planet. [...] And because Scientologists view children as spiritual beings, you're not treated as a kid. You're given a lot of responsibility, so your ego becomes extremely inflated."

After three decades with Scientology, Leah Remini admitted, "As time goes on, you start to lose touch with the real world. The mindset becomes us against them."

According to People magazine, 45-year-old Leah Remini decided to leave the church for her own daughter. The publication reports:

" 'I decided I didn't want to raise my daughter in the church because from what I've experienced and what I saw, the church becomes your everything,' she said earlier this year on her reality show, 'Leah Remini: It's All Relative.' Her daughter is now being raised Catholic, and she shared a photo of her recent baptism on Instagram.

"In the '20/20' clip, it's explained that her mother brought her into the church as a child, after joining she was quickly brought 'on course.'"

Leah Remini explains the Scientology term: "You learn how to apply the techniques of Scientology to yourself and others."

Apparently, being "on course" is crucial to a child in the Church of Scientology, since it helps them understand their ultimate goal of saving the planet.

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