Tom Brady cautioned listeners Wednesday not to judge a book by its cover, especially when said cover is wife Gisele Bündchen.

When asked about his relationship with the Brazilian-born model, Brady told Howard Stern during his SiriusXM interview his spouse of 11 years is “different” from what the public perceives.

“She’s probably very different than how people would probably see her, what’s been portrayed as a fashion model,” Brady said, noting the 39-year-old stunner is a very “spiritual woman.”

Bündchen, who practices meditation, “believes in trying to heal herself,” according to Brady. And while the couple emulates the idea of a picture-perfect unit — which includes Brady’s son Jack with ex Bridget Moynahan, in addition to their two kids, daughter Vivian and son Benjamin — like most marriages, theirs too has evolved.

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“There was a couple years ago, she didn’t feel I was doing my part for the family,” Brady said. “She felt like I would play football all season and she would take care of the house, and then all the sudden when the season would end, that I’d be like, ‘Great, let me get into all my other business activities. Let me get into my football training.’ And she’s sitting there going, ‘Well, when are you going to do things for the house? When are you going to take the kids to school and do that?'”

Brady said he had to “check [himself],” and made a “big transition” two years ago to get things back on track. That included skipping OTA practices with the Patriots that pepper the latter parts of the offseason.

“She wasn’t satisfied with our marriage,” Brady said. “So I needed to make a change in that.”

Brady also revealed Bündchen wrote him a “heartfelt” letter that he still has, a reminder for him that life is ever-evolving.

“What worked for us 10 years ago won’t work for us forever,” he said. “We’re growing in different ways.”

Brady is embarking on one of the biggest transitions of his life, moving on to the Tampa Bay Buccaneers after 20 seasons with the New England Patriots.