Actor Chris Pratt appeared on Thursday night's "Late Show with Stephen Colbert" and discussed his faith in God, detailing his most recent spiritual endeavor — a fast.

He also addressed his outlook on being a Christian celebrity in today's world.

What did he say?

Pratt discussed his participation in the biblically based "Daniel Fast," which he announced he'd be taking on in January.

The fast is a 21-day journey of intensive prayer as well as fasting, with intents of bringing its participants closer to God.

The popular three-week fast is inspired by Old Testament prophet Daniel, and restricts participants to unleavened breads, fruits, and vegetables for the duration of the period.

During his interview with Colbert, Pratt said he opted to try the fast after being inspired to do so by his pastor.

"Daniel was a guy who only ate fruits, vegetables, and grains," Pratt said.

"I was inspired by my pastor to do it," the "Lego Movie" actor revealed. "It's kind of like our Lent, you know, you give something up. So, for 21 days I had no meat, no sugar, no alcohol, and it was actually amazing. It was really cool."

Colbert went on to ask Pratt if he ever felt — like Daniel himself — like he is in the lion's den, being a celebrity.

"There's this great quote I heard in church," Pratt said, "and it felt really appropriate, which was, 'If the spotlight that's shining on you is brighter than the light that comes from within you, it will kill you.'"

"And you see it all the time," he added, "people in our position, people who are actors."