At first I used dotted arrows to represent relationships unrelated to the time line, but I didn't really need to use them.
A curved arrow indicates a creative use of the word that is different from its original meaning, for example metaphor (non-parallel symbol)
The technique of using vertical arrows for parallel symbols and curved arrows for non-parallel symbols may work for simple situations, but may be difficult for "time series" or "many symbols".
This page is auto-translated from /nishio/フェルトセンスとシンボルの図 using DeepL. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.