In his interview with Amy Poehler, when she asks Paul if he’s spiritual, he says he does the thing “you know the secret?” What does he mean? Is it a euphemism for sex?

The timestamp is 54:22 on the Youtube video. Here’s the transcript:

Amy: Do you have a spiritual practice, Paul? Do you feel like you’re a spiritual person?

Paul: Um, I don’t have like a practice so much. I meditate. Um… and I sort of believe in a power. I don’t know what he or she is but I know there’s something there and I feel. And I often do that thing-you know the secret?

Amy: Oh yeah

Paul: Heyyy

Amy: I got really into that for a minute

Paul: Yeah. Well I’m still into it

Amy: I mean you probably were on my vision board and here I am talking to you

Paul: Oh I just know the simple version

I love his kind of haunted, hollow voice like in Can You Take Me Back or in Too Many People.

Are there any more songs that feature his voice like this?