【The Origin of Suffering】- Why is it called "invariable" karma?

【Why is it called invariable karma? In the desire realm, karma that should bear fruit while you are a deity may instead bear fruit while you are a human, an animal, or a hungry ghost; thus, its effect is variable. In the higher [deities'] realms, karma that should bear fruit at a certain level does not mature at levels other than that; thus, it is invariable.】

So why is it called "invariable karma"? In the desire realm, say there is a karma that you had created and it should bear fruit for your next life. In other words, you should be a deity in your next life. However, at the last moment, if suddenly there is special cause & condition, ah! it could change. You can’t be born in the heavens, cannot be born in the heavens. You may instead be born in the human realm or fall into the miserable realms. This fruit could change. It could possibly change. But if you have created an invariable karma in the desire or the form realms, when it bears fruit, it will definitely not be altered, definitely not be altered.

SOURCE 来源 :

74A 15’42” Vol 10 of Master Jih-Chang’s Discourse P48 LL4
English Lamrim Vol 1 P303

日常师父法语📡74A 15’42” 手抄稿第10册P48 LL4

希求解脱 : 为何名为不动业？

为什么“名为不动”啊？

【何故名为不动业耶？谓如欲界中，应于天身成熟之业，有于人畜饿鬼之身，而得成熟，果是可动。如是上界，应于此地成熟之业，除此地外不于余熟，故名不动。】

那么为什么叫作“不动业”呢？就是说在我们欲界当中，本来你造的业，这个顺受。就是换句话，你下一生应该在天身当中，但是你临时万一有什么特别的因缘，啊！会改变，生不到天上去，生不到天上去，乃至于人道，乃至于堕落到恶道当中，这个果，可能变，可能变动的。但是你造了欲界、色界那个定业以后，那个成熟的时候，它绝不会变动的，不会变动的。