”Christian musician Mandisa is known among fans as the optimistic, bright-smiling singer whose hope-filled songs brighten your day. But as she writes in her new book, Out of the Dark, Mandisa has quietly battled depression and anxiety. Her descent into inner darkness grew worse, she writes, when a close friend died of cancer. That friend was the subject of the 2013 song Overcomer.”. Read More at ChristianHeadlines.com.