Hǎo de biāotí wǎngwǎng néng tànlídézhū de gàikuò quánwén.
A good headline can often capture the essence of the entire article.
Tips
history
From 《庄子·列御寇》 (Zhuāngzǐ – Liè Yùkòu): a poor man dives into a deep pool and retrieves a priceless pearl from beneath a sleeping black dragon (骊龙 lílóng). His father warns him he was lucky the dragon was asleep. The story originally meant 'taking great risk for great reward' — over time it shifted to mean grasping the most essential point.
usage
Now mostly literary — used to praise writing, criticism, or analysis that cuts straight to the heart of the matter. Compare 一针见血 (yīzhēnjiànxiě) 'pierce to blood with one needle', which is more colloquial.