So here's my take on it. 'Falling' represents the environment you're in and the fact that you may not have control over it. The statement about 'landing' represents the impact you make, in spite of the hand you're dealt ('falling'). In other words, 'only concern yourself with what you have control over.' You could argue this is reflected in the story the old guy tells about his friend "Grunwalski". Grunwalski essentially worried so much about his pride by trying to keep his pants up (Vinz seeking revenge = pride) and ends up dying, even though he had it in his power to do what he needed to survive.
Like I said, just my take.
"Master your high or die under the staff!"
Pretty much agree with DirtyEpic, well said.