epiphany

A moment of sudden and great revelation or realization.

a moment in which you suddenly see or understand something in a new or very clear way

a (1) : a usually sudden manifestation or perception of the essential nature or meaning of something (2) : an intuitive grasp of reality through something (such as an event) usually simple and striking (3) : an illuminating discovery, realization, or disclosure

b : a revealing scene or moment

A manifestation of a divine or supernatural being.

an appearance or manifestation especially of a divine being