Worms or [in fact] Seditions
Imam Ali (pbuh) stated: “I give you an example; [imagine] an individual has some wheat. s/ he winnows them in order to sift and thresh, then s/ he stores the wheat in a room with doors closed…
After some times when s/ he opens the room, he finds out the wheat has been infested(with worms [The special worm, damaging wheat is called “weevil”!])