The J'hena, also known as the Paths, are the rules that bind theLe'enle to prevent them from excess interference in the lives of mortals. These rules are written into their soul-stuff, and straying from them causes sickness, stasis, and even death.
In general, any act that can be construed as a deus ex machina, or any other godmode/griefing inflicted on any non-Le'enle that cannot reciprocate will cause an infraction of the Paths's rules.