Let’s start with ji as in strateJI becase that’s what it is. Strategic thinking requires sharp timing. And what do we know that’s sharp and precise? A needle! 针 zhen1 means needle.
什 ren2 人+shi2 十 =shen=what.
But ji is 计。
yanzipang on the left tells us this is about speaking. shi ten十on the right. speaking+10=calculating.
jihua 计划
划 hua on the right means plan.
Mnemonic: Judge It Here Upon Another
calculated plan = strategy.
jihui then means plan 机 this ji means trigger, as in trigger of a gun, specifically a crossbow and thus the idea of MACHINE. 会 on the right means an assembly or gathering; it is specifically the idea of a temple-county fair. The top ren is actually a mouth eating food pac man style (the food is the dot). The bottom arrow indicates the idea of motion movement arrival. also the top ren (which is really a mouth) may be seen as a roof. This shows that hanzi are sometimes polysemic but their polysemicity is reinforcing.
Mnemonic: Join In Under Anonymous Identity
Trigger Meeting = Opportunity.