Take the tip and you will have the middle

Explanation

of obscure and hard-to-understand sayings. The colonists who settled Aegina, having been driven by war from their country, consulted the god, who delivered to them the above response. Interpreting the oracle, they took possession of a promontory (akrōtērion) and settled at its middle. Hence, when we wish to speak in riddles of something hard to grasp, we use the saying.