epiph·a·ny

/ıˈpıfəni/ noun, pl -nies

1 Epiphany [singular] : a Christian festival held on January 6 in honor of the coming of the three kings to the infant Jesus Christ

2 [count] : a moment in which you suddenly see or understand something in a new or very clear way

Seeing her father again when she was an adult was an epiphany that changed her whole view of her childhood.

She experienced an epiphany.