Your conduit to divine power eschews the traditional channels of prayer and servitude—you instead glean divine truths that extend beyond any single deity. You understand the great mysteries of the universe embodied in overarching concepts that transcend good and evil or chaos and law, whether because you perceive the common ground across multiple deities or circumvent their power entirely. You explore one of these mysteries and draw upon its power to cast miraculous spells, but that power comes with a terrible price: a curse that grows stronger the more you draw upon it. Your abilities are a double-edged sword, which you might uphold as an instrument of the divine or view as a curse from the gods.
An oracle wields divine power, but not from a single divine being. This power could come from a potent concept or ideal, the attention of multiple divine entities whose areas of concern all touch on that subject, or a direct and dangerous conduit to raw divine power. This is the oracle's mystery, a source of divine magic not beholden to any deity.