if rigpa is defined in the narrow sense as one's knowledge of our condition, the the causes of rigpa are meeting a rigdzin, receiving direct introduction, and collaborating during the DI. From these causes the state of rigpa may arise. If the word rigpa is used to mean the base (as it sometimes is in Dzogchen texts) then of course it is beyond cause and effect.
Thoroughly tame your own mind.
This is (possibly) the teaching of Buddha.