They are messengers from God, heavenly beings without material bodies, spiritual envoys carrying out God's will. They are angels. And according to Lorna Byrne, everyone has one -- a guardian angel who’s always with you and will never leave you. She says they are “the gatekeepers of your soul.” She knows this, she says, because all her life she's been surrounded by them and has talked to them. Her book, Angels in My Hair, recounts her lifelong experiences with angels directing her and teaching her. Byrne's story begins with the telling of her toddler years, when the angels told her...