KanjiJLPT N1
Gist

purport, gist, elegance, interest, proceed to, tend, become

Mnemonic

You run into a crowded lecture hall late and take only the essential bullet points scrawled on the board—that's the gist. No time for every detail. You run straight to the front, take the core idea in one glance, and sprint out. The gist is all you need.
Additional thoughts
Picture yourself literally sprinting (run) into a room and snatching (take) a single sticky note that holds the main point. Speed + grabbing essentials = gist.
Quick recall
Run in and take only the core idea—that's the gist.

Details

The keyword for 趣 is gist. This kanji conveys the essential meaning, purport, or general drift of something—the core idea or main point that one wishes to communicate. It also carries connotations of taste, elegance, and aesthetic sensibility, referring to the subtle charm or appeal that something possesses. In broader usage, it can indicate one's intent, purpose, or the overall tenor of a message or situation.
On'yomi
しゅ
Kun'yomi
おもむき、おもむ.く