Richelieu was a great statesman, and like all great statesman, he was a very ruthless man. He's not cruel. He just does what he has to do. And in his own mind, he's absolutely right.
Meditation is like a single log of wood. Insight and investigation are one end of the log; calm and concentration are the other end. If you lift up the whole log, both sides come up at once. Which is concentration and which is insight? Just this mind.
Witness the witness itself - and... the ultimate ecstasy is created. Start watching your thoughts but don't stop there... One more thing has to be done, one more step: now watch the watcher... Nothing else is left, only you are. By watching the mind, the mind disappears. By watching the witness, the witness expands and becomes universal.
Just know what is happening in your mind - not happy or sad about it, not attached. If you suffer see it, know it, and be empty. It's like a letter - you have to open it before you can know what's in it.
The thing about villains is that villains always have their own logic, and they don't necessarily see themselves as villains. Richelieu is not a villain, in his own mind. He's doing what he needs to do.
Religion pervades intensely the whole frame of society, and is according to the temper of the mind which it inhabits, a passion, a persuasion, an excuse, a refuge; never a check.