Carrie Underwood and her husband, former professional hockey player Mike Fisher, have previously talked about their marriage and the miscarriages they weathered between the arrival of their two sons in the mini-documentary "Mike and Carrie: God & Country."
"It's just like you have this tiny person that you're just trying to keep alive," Underwood said with a laugh. "Just to look at both of our boys... [I] just fall more and more in love every day."
"And I still say to Mike all the time, you know, 'We have two kids!' A little mind-boggling," she added.
The superstar pair even shared a couple of their family rituals.
"I feel very connected when we do have cuddles in the morning," Underwood revealed, "when we're all just kind of waking up and kind of have some morning cuddles before the chaos."
Family prayer is also a Fisher tradition.
"We always pray before meals and stuff like that," Underwood said. "And Isaiah will remind us -- even if one of us is in the other room, hasn't made our breakfast yet -- he's like, 'Where's Mom? Where's Mom? I've got to have Mom!', so we can all be there together to pray."
Underwood believes their "open dialogue about God" makes it easy for Isaiah to embrace the idea of faith.
"He just says things," she explains, giving an example. "'Did you know I have to love God even more than you, Mommy? I love God so much.'"
"I feel like he means it," she continued. "I feel like things are... just rattling around in there. And you're like, 'What do you sit around thinking about all day?'"
For the 37-year-old, there's no doubt about her number one goal as a mother.
"I want our children, I think, just above everything -- I mean, this goes for everybody everywhere, too -- [to know] you are loved and you are wanted," she asserted. "There are some not-too-great things that happen in the world and happen within families. And we are all flawed. And our flaws, I think, sometimes ripple out onto everybody else."