Here, reason means his personal logical thinking.This process involves taking informantion around and analysizing it without mood. Reason is logical while emotion is not. Actually, people usually do a right thing in a reason but not in a mood. We feel like doing something that we think it is right, but the fact is that we usually regret having done so when we think back.That's the problem that almost everyone will come across in our daily life.
Well, the word "reconcil" is a transitive verb that means two things or points are compatible with each other.They have a common ground and common sense.Yeah, at least something similar.If not,that's the negative meaning. NOT COMPATIBLE！
These two points or ideas will not agree with each other.They fight until the end.Who will survive? The emotion or the reason? It totally depends on you,buddy :-)