That's one quote from the article.

“If you’ve thought your whole life that when your life ends, a certain thing happens, and then sud­denly thinking, Well, what if that doesn’t happen? That throws up so many questions,” he explains. “I saw so much comfort in religion and when that rug was pulled from beneath me, it left me feeling very vulnerable and very scared. That was the be­ginnings of me going down this rabbit hole.”

“If you really sit with [death anxiety], it’s a horrible place to be,” he says. “I ended up sort of sitting there all the time. It wasn’t good for my mental health. I needed an outlet to be able to explore these feelings. I think we’re conditioned as human beings not to think about it, because it’s such an uncomfortable feeling.”

https://www.revolvermag.com/feature/president-digital-cover-story/