Imagine a cult

A cult called the Thraldomites has been growing rapidly for a number of years. Cult members believe that the Earth has already been invaded by aliens, but unlike many science fiction invaders, these aliens are benign and only mean to help us. 

According to Thraldomite beliefs, the aliens are called Thraldomians, having arrived here some decades ago from a distant planet called Thraldom. This is a planet very similar to ours, orbiting a star much like our sun in dimensions and solar activity.

Thraldomians look and behave exactly like humans, living among us quite inconspicuously while working hard for our ultimate good. These human-like aliens are intent on educating us about what they call the Joy of the Winds and the Joy of the Sun which give us life and energy.

Although the aliens are able to pass themselves off as human, their disguise is not absolutely complete. Thraldomites refuse to discuss this issue and do not even have a name for it, but a considerable amount of covert research suggests that it has something to do with language.

When Thraldomians speak of the Joy of the Winds and the Joy of the Sun, it is remarkably difficult for humans to make sense of the language they use. Even cult members struggle, and usually get over the problem by merely repeating Thraldomian phrases and mantras without understanding them.

Sometimes, Thraldomian language appears to make no sense at all. Thraldomites cannot admit the reality of this issue but it does appear to genuine. Researchers outside the cult have suggested that the Joy of the Winds and the Joy of the Sun are intentional gibberish, being designed by Thraldomians to test the loyalty of cult members.