By Daphne Sashin, CNN

Deborah Mitchell remembers the time, when her boys were younger, and another mom asked her about her religious beliefs.

Mitchell was raised Catholic but moved away from religion in her early 20s. She told the other mother that she didn’t go to church and didn’t even really believe in God.

Then, she says, the recruiting started.

“She used to call my house and tell me she was praying for me. She’d leave me messages and leave cards in my mailbox with scripture,” Mitchell says. “I do realize that she meant well, but at the same time, I know my views were seen as wrong. I needed to be ‘saved.’”

Mitchell, a mother of two teenagers in Texas who feels “immersed in Christianity,” started a blog about raising her children without religion because she felt frustrated and marginalized. She didn’t want to feel so alone, she says.

This week, she gained a whole new audience and the reassurance that she's not alone. Her essay on CNN iReport, “Why I Raise My Children Without God,” drew 650,000 page views, the second highest for an iReport, and the most comments of any submission on the citizen journalism platform.

It starts:

When my son was around 3 years old, he used to ask me a lot of questions about heaven. Where is it? How do people walk without a body? How will I find you? You know the questions that kids ask. For over a year, I lied to him and made up stories that I didn’t believe about heaven. Like most parents, I love my child so much that I didn’t want him to be scared. I wanted him to feel safe and loved and full of hope. But the trade-off was that I would have to make stuff up, and I would have to brainwash him into believing stories that didn’t make sense, stories that I didn’t believe either.

Mitchell posted the essay detailing her seven reasons for raising her children without God on CNN iReport because she felt there wasn’t anyone else speaking for women or moms like her. As she sees it, children should learn to do the right things because they will feel better about themselves, not because God is watching. She asks questions like: If there was a good, all-knowing, all-powerful God, why would he allow murders, child abuse and torture?

Lots of people disagreed with her. Tons. They flagged her iReport as inappropriate and criticized CNN for linking to her essay on the CNN.com homepage. But there were plenty of others who wrote thoughtful rebuttals, respectfully disagreeing with Mitchell while not foisting their own beliefs on her. Take, for instance, a Methodist dad, who said faith can be hard to nail down, but “not to avail ourselves of the power of something we don't completely understand is silly.”

Others said Mitchell presented a simplistic view of religion.

“Presentations such as these seem to ignore a substantial percentage of believers - well-educated, compassionate, liberal folk, Christian and non-Christian alike - who, I feel, are able to worship without being blind to the realities of the world, or without lying to their children about their understanding of these complexities,” wrote commenter RMooradian. “I'll be raising my children with God, but I understand those who cannot!”

But Mitchell’s essay also struck a chord with hundreds of like-minded parents raising children in a world where lack of belief puts them in the minority, often even in their own family.

“Thank you for writing this. I agree with everything you say, but I’m not brave enough to tell everyone I know this is how I feel,” a woman who called herself an “agnostic mommy of two in Alabama” posted in the comments. “Thank you for your bravery and letting me know I’m not alone.”

It’s a growing group. One in five Americans is not affiliated with any religion, and that number has grown by 25% in the past five years, according to a survey by the Pew Forum on Religion and Public Life. Of that group, 88% said they were not looking for religion, although 68% of the unaffiliated said they believe in God.

Brittany Branyon, an American graduate student and substitute teacher living in Germany, was also compelled to express her thanks to Mitchell. Branyon was raised Southern Baptist in Georgia and Alabama. In high school, when she began to question the theory of creation and befriended gay and lesbian students, she says her mother tried to perform an exorcism.

“She opened all the windows and doors in the house, brought me to the door, held my shoulders and shook me while screaming, ‘Satan, get out of this child!’, ‘Satan, leave this child alone!’.”

After moving away from the South, she and her husband “became more comfortable in our secular ways,” but still take criticism from family members. They are now expecting their first child.

“Though we are elated to welcome our child into the world, we can’t help but dread the religious uproar that is to come from our families,” she wrote in an e-mail.

Such an uproar is familiar to Carol Phillips, a stay-at-home mother in northern Virginia. When she gave birth to her first child, she said her family was shocked that the baby wasn’t baptized. She said her mother-in-law cried and told her the little girl’s soul would not go to heaven.

Then there are the comments from strangers. Last year, Phillips said she and her daughter were at a birthday party when a tornado warning sounded.

“We were all in the basement keeping safe. A little girl was saying baby Jesus will keep us safe. My daughter asked who Jesus was. The rest of the time was spent hearing ‘I'll pray for you sweetie, we can take you to church with us if you want,’” Phillips told CNN.

Commenting on Mitchell’s iReport, Phillips said, “To live out loud and to speak freely about my beliefs brings many clucking tongues. I would think it’s easier to come out as gay than atheist.”

Mitchell said she spent years studying the history of religion and does believe it has “an important place in our community.” She has told her children that she’ll be fine if they decide to join a church when they are older.

She ended her essay:

I understand why people need God. I understand why people need heaven. It is terrifying to think that we are all alone in this universe, that one day we—along with the children we love so much—will cease to exist. The idea of God and an afterlife gives many of us structure, community and hope. I do not want religion to go away. I only want religion to be kept at home or in church where it belongs. It’s a personal effect, like a toothbrush or a pair of shoes. It’s not something to be used or worn by strangers. I want my children to be free not to believe and to know that our schools and our government will make decisions based on what is logical, just and fair—not on what they believe an imaginary God wants.

After her post ran on CNN, Mitchell said she was encouraged by the number of people who agreed with her, or who disagreed but wanted to have a respectful discussion.

“I’m not saying that everybody should think how I do. I’m saying the people that do should have a place in our society and have acceptance and respect,” she said. “I just want to have children grow up and be able to not be afraid to say ‘I don’t believe that,’ or ‘I’m not part of that.’”