Ezra's family believed that they were guarded by a benevolent angel named Castiel. From generation to generation they passed an heirloom, a necklace from an unknown origin. Upon the death of his grandmother, he had inherited this heirloom which granted him the ability to conjure Castiel. Having to see divine intervention happen before him, it served as his inspiration to pursue theology. He seeks to delve deeper into the mysteries of the spiritual world creeping behind reality, as well as the reasons for Castiel's earthly presence.