If Moses walked into a dark cave, he would have lit the cave up with the light from his face. Moses did not know He shone like that. And the people did not want to look at it, so Moses put a veil on his face. Imagine Moses standing before you with a veil on his face, so you could not see one part of his face as he preached to you. And many times some people see that light and others do not.
Fleshly people are people who are materialistic-minded.
They are very physical-minded people. Fleshly things are not always bad. Some people think that being carnal means one is evil. But carnal only means fleshly. Yes, there are some carnal things that are bad.