You don't really see a muscle as a part of you, in a way. You see it as a thing. You look at it as a thing and you say well this thing has to be built a little longer, the bicep has to be longer; or the tricep has to be thicker here in the elbow area. And you look at it and it doesn't even seem to belong to you. Like a sculpture. Then after looking at it a sculptor goes in with his thing and works a little bit, and you do maybe then some extra forced reps to get this lower part out. You form it. Just like a sculpture.