We can see trees being used to map morality, with the popular tree of virtues and tree of vices, as you can see here, with these beautiful illustrations from medieval Europe.
道徳を描くためにも ツリー構造が使われ 「美徳の樹」と「悪徳の樹」が よく知られています これは中世ヨーロッパの 美しい図です