hetu

...is a word that expresses truth in Buddhism, specifically called 'en-gi' (cause and effect), or simply 'engi' (dependent origin). It is a unique Buddhist doctrine that sees all phenomenal things, that is, ui, as arising from the action of two types of causes: hetu (direct cause) and pratyaya (indirect cause). It is said that 'he who sees dependent origination sees the law, or truth, and he who sees the law sees dependent origination.' It is basically 'This exists, therefore that exists.

*Some of the terminology that mentions "hetu" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…仏教における真理を表す一つの言葉で，詳しくは〈因縁生起〉といい，略して縁起という。現象的事物すなわち有為（うい）はすべて因hetu(直接原因)と縁pratyaya(間接原因)との2種の原因が働いて生ずるとみる仏教独自の教説であり，〈縁起をみる者は法＝真理をみ，法をみる者は縁起をみる〉といわれる。それは基本的には〈此有るが故に彼有り。…

※「hetu」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報