یکی بود و یکی نبود
This is about love and is perhaps the shortest summary of Persian literature.
The literal translation of the phrase Yeki Bud Yeki Nabud (Once Upon a Time) is One Was There And One Was Not There, or There Was One And There Wasn't One, alluding to an indefinite time and place. Opening a story by Yeki Bud Yeki Nabud prepares the hearers (especially those of very young age) or readers that what they are about to hear or read is not necessarily true.