The human need for light and warmth are miraculously met by our planet and solar system. Ben Abbott compares these earthly systems to Christ's divine mission. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Ben Abbott, professor of Plant and Wildlife Sciences at BYU

Author Philip Yancey learned a surprisingly poignant lesson about Christ while taking care of the fish in his aquarium. Guest: Philip Yancey, author of "Vanishing Grace"

Originating in Mexico over 400 years ago, Las Posadas is now an Advent tradition through much of Latin America. Neighborhood bands of "pilgrims" representing Joseph and Mary knock on doors looking for shelter, face rejection, and then ultimately are taken in by generous hosts. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guests: Fernanda Romero, of El Salvador, former President of the Newman Club for Catholic Students at BYU (current Vice-President); Bryan Barba Salazar, of Nicaragua, BYU student and associate producer of Constant Wonder

When Mary and Joseph present the infant Jesus at the temple, they are honoring the human bodies of both mother and child. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Hannah Anderson, author of "Heaven and Nature Sing: 25 Advent Reflections to Bring Joy to the World"

She may have started life as a "nowhere person in a nowhere place," but Mary's devotion has inspired generations. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Gaye Strathearn, professor of Ancient Scripture and Ancient Near East Studies at Brigham Young University Excerpts from “My Soul Doth Magnify the Lord” from The Redeemer by Robert Cundick performed by the BYU Singers. Used by permission from the Heritage Series on Tantara Records and the estate of Robert Cundick. © 1996 Tantara Records. All Rights Reserved.

Astronomers and historians have long debated whether the Star of Bethlehem was really a star at all. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Deb Haarsma, astrophysicist and President of BioLogos

With grace, the hilarious Kevin Kling has overcome trauma and learned to live with disability. You may recognize your own spiritual journey in his humorous "Three Phases of Prayer" story. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Kevin Kling, author, playwright, and storyteller

When Gayle Boss stumbled on a passel of river otters on her 66th birthday, she learned from them that you're never too old to be playful. She agrees with Job that it's important "to ask the animals" for insight. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Gayle Boss, author of "All Creation Waits: The Advent Mystery of ?New Beginnings"

Even when Dr. Francis Collins wasn't a believer, music moved his soul. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Francis Collins, former director of both the NIH and the Human Genome Project

After artist Jenedy Paige discovered that many popular depictions of Christ's nativity scene are historically inaccurate, she set out to create a painting of her own—which unexpectedly brought her a deeper understand of God's love. Part of a Constant Wonder series marking the Christian Advent tradition with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Jenedy Paige, oil painter

Lessons on stillness from a cold-blooded creature that has mastered the art of not breathing to survive a frozen winter. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Gayle Boss, author of "All Creation Waits: The Advent Mystery of New Beginnings"