We meet young Jews, Christians and Muslims who are bucking the 'spiritual but not religious trend' and deciding they want deeper observance in their lives.

Fatima and Hagiraa Tipu are sisters. One wears a headscarf for modesty, and the other doesn't. Hagiraa tells her sister that she hopes to wear it one day, but doesn't have the confidence yet. Her sister understands.

Ekemini Uwan is a devout, orthodox Christian who admits she doesn't "check all the boxes" for liberals or conservatives. And she doesn't apologize for her embrace of traditional gender roles.

Rachell Goldberg used to see the Jewish ritual of immersing in a mikvah as just another religious obligation. But now, after enduring seven months of chemotherapy for breast cancer, she's making the ritual her own.

For religious studies professor Lewis Baldwin, prayer was the force behind so much of King’s power, connecting him with his ancestors and giving him strength in the face of tremendous pressure.

Our own Maureen Fiedler says that for her, as a young nun in the 1960s, King represented "the best of contemporary Christianity." And Rev. Dennis Wiley tells us how he fought to make MLK Day a national holiday.

Just a stone’s throw from where Martin Luther King Jr. gave his "I Have a Dream" speech sits the National Museum of African American History and Culture, where hundreds of artifacts are centered on faith.

He was the son of a minister, but it took a while for King to come into his own as both a pastor and a revolutionary. Historian Stewart Burns traces King's transformation from cautious intellectual to fiery leader.

On his birthday, we find out why Dr. Martin Luther King placed spiritual values at the very center of his effort to transform society.