[KMag]

Part of that may be that feelings are a very difficult basis for constructive conversation if you disagree strongly. Even if you feel strongly, presenting your position as not emotionally based at least helps move the conversation forward.

[jimkleiber]

I've seen that often when I say how I'm feeling, like actually feeling, and the other person does as well, it can help me feel more connected to them and as a result maybe less connected to the belief/idea/preference I held before the conversation. Not always, sometimes I still feel very adamant about a position and yet I tend to open a bit to their humanity.