Drew M. Loewe synthesizes some powerful scholarly works about the vital connection between emotion and rhetoric. Let's look at a few of these quotes. I think they'll be beneficial for your rhetorical analysis exercise for Project 1:
James Averill: [R]hetoric and emotion share two important features—namely, both are persuasive acts and both are occasioned by similar conditions [of coordinating action in the face of uncertainty]. To these two we may add a third similarity—namely, both rhetoric and emotion are inextricably linked to values. . . States such as anger, fear, love, guilt, and the myriad of other emotions recognized in ordinary language, are infused with value—they aim at what is worth doing or preserving.