There are fewer combinations more dangerous than boredom and desire.
I would like to propose that boredom be defined as the feeling of despondency that a person has when he or she does not do anything productive. Desire should be defined as the feeling of wanting something that one does not have.
So boredom is when you do not do anything useful and desire is when you want something that you don't have.
A person bored is a person who has nothing to do. The longer a bored person remains bored the harder it would be to get him to do something useful. Boredom begets boredom. It usually takes a vigorous invitation from friends to break this cycle of boredom (a symptom of a deeper problem called laziness)
Thus a bored person has more time to be bored than the normal not bored person. It means that he has more time to ruminate on his desires, (the things, position, status or prestige he does not have).
The more time spent on desiring instead of actually getting increases the discomfort of a bored person. He is made to face demons he cannot conquer (because he is lounging about and not doing anything about them).