" Frenzy, the counterfeit of fervency, is a contrived attempt to simulate godly fervor. Those who deliberately manipulate
people's emotions are served warning here. There is something holy, something sovereign, about genuine spiritual fervor that cannot be manufactured artificially. It is easy to confuse frenzy and fervor, but the confusion is deadly. "

― R.C. Sproul , Does Prayer Change Things? (Crucial Questions, #3)