Six types of cause 六因

The six types of cause (Skt. ṣaḍhetu; Tib. རྒྱུ་དྲུག་; Wyl. rgyu drug) are the basis on which all conditioned things arise. They are: 一切因緣和合事物的生起之基，分為六種：

1. 能作因efficient cause (kāraṇahetu; byed pa'i rgyu)
2. 俱有因coemergent cause (sahabhūhetu; lhan cig 'byung ba'i rgyu)
3. 同類因cause similar to its result (sabhāgahetu; skal pa mnyam pa'i rgyu)
4. 相應因concomitant cause (saṃprayuktahetu; mtshungs par ldan pa'i rgyu)
5. 遍行因omnipresent cause (sarvatragahetu; kun tu 'gro ba'i rgyu).
6. 異熟因ripening cause (vipākahetu; rnam par smin pa'i rgyu)

因，又可分為 direct cause 親因 / 直接因 & indirect cause 疏因 / 間接因，或是 cause of equal state 近取因 & concomitant cause 俱生（助）緣，見 https://www.theqi.com/buddhism/SLX/chap03.html

Internal Links

• Four types of condition四緣