epiphany: an experience of sudden or striking realization (Wikipedia).
The word epiphany was originally connected to religion. My 1984 Random House dictionary has the word listed only as a proper noun, defined as "an appearance or manifestation, esp. of a deity". But in my view, the word is best utilized sparingly either way, sharing sacred linguistic ground with a word like genius. At the same time, I hope there's no such thing as an epiphany quota.
What was your most recent epiphany? Mine seem to be linked to books, often novels. So whenever several novels in a row pass without some insight jarring me, I feel under-nourished intellectually. During my most recent stretch like that, I re-visited James Joyce, knowing the ending to the stories in "Dubliners" to be rich in wisdom.
Has any music ever led you to an epiphany? A piece of visual art? A film? Or, was your last epiphany the result of an interaction with someone? I'm curious about the source - if you're able to pinpoint it - as well as what you suddenly realized.