The sheer feeling of aliveness. We all know what that is, even though it comes in many different forms. Maybe it’s going for a long run at night. Or free-climbing a mountain. Or an intense meditation practice. Or that sensation you get when you’re on the floor at a great concert. Call it a flow state or a religious experience or whatever you want, but it’s a kind of ecstasy.

People have been experiencing this for centuries, and in previous eras, they called it a mystical experience. In the modern world a word like “mystical” feels weird or out of place. Maybe when you hear it, you think of a fringe religious figure. Or a spiritual teacher. Or crystal-peddling influencers on Instagram. But the study of mysticism — that feeling of intense experience — has been the focus of philosophers and theologians for centuries. So what can we learn from the tradition of mystical thought? Might it help us live better and more meaningful lives in the 21st century?

Today’s guest is Simon Critchley. He’s a writer and a philosopher at the New School in New York and the author of a new book called Mysticism. In this conversation, he tells host Sean Illing how we can all get outside our own heads and enjoy what it feels like to be alive.

Host: Sean Illing (@SeanIlling)

Guest: Simon Critchley, philosopher and author of the book Mysticism

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