Write a parable
A succinct, didactic story that illustrates one or more instructive lessons, principles or universal truths.
A metaphor, with narrative. A simile with meaning that’s not explicit. (Nor hidden.)
Write your parable to seem “ancient” if you like. Or write about familiar aspects of everyday life (as great parables always have done, see below).
Keep it short! (Don’t sweat. Aim for average.) And post it below, please.
Hebrew scholars used parables to shed light on the Torah. This link takes you to one I like called the Rooster Prince.
Jesus, coming from that same tradition, preached with parables. (This link takes you to Jesus’s parable of the Prodigal Son.)
Islam has a wonderful tradition of parables, especially these ones (follow link) about Mullah Nasruddin.