In a bonus clip from Sunday night's premiere episode of I Am Cait, Caitlyn Jenner sits down with her two sisters, mom Esther and a therapist for families with a special focus on gender diversity, which leads to some powerful dialogue.
"At some point our society, our culture decided to be a binary society, which means you've got boys and you've got girls," counselor Susan P. Landon says. "That gets determined when children are born. The cluster of flesh, if you will, between your legs is what determines your gender. It doesn't. It determines your anatomical sex, but it does not determine your gender, okay? When I see children who are sort of taking information in from the time that they're born, and at 3 years old or 5 years old they say, 'You know what? I'm not who you told me I am,' that comes from an experience they feel inside."
The group goes on to discuss Landon's point, and Caitlyn, 65, explains how she "always felt female."
"None of us can remember anything about you as a young boy displaying any kind of feminine characteristics at all," Caitlyn's sister Pam says.
"It wasn't like I was an effeminate man," Caitlyn replies. "So I never really felt that way, but I always felt female."
After Pam explains that she had never thought of the "difference between feminine and effeminate" in that way, mom Esther, 89, chimes in with a few particularly important words.
"It seems as though when people start to have more understanding, the stigma of being different goes away," Esther says, pointing to the importance of transgender visibility and the role Caitlyn is playing in that community.
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"To me, that's the beauty of her giving herself permission to do this because, like for any of us, once you've seen something over and over again you get more used to it, right?" Landon concludes. "So it becomes part of our world rather than something that nobody wants to acknowledge. It's a big journey."
Watch the bonus clip above, and tune in to the second episode of I Am Cait Sunday at 8 p.m. ET on E!