So my son comes marching into the kitchen, and says in a demanding tone, "Make me snacks now!" My first reaction is to think that this is simply unacceptable behavior, and that he needs a good talking to. But I also notice that I am quite triggered by this, and that before I do anything, I need to reflect.
So I start boiling water for some pasta (I do have enough sense to know that when he asks for a snack that what his body really needs is some healthy food and not junk). As the water boils it dawns on me why he was so rude. In a word: metabolism.
It's amazing to me how much of our spiritual and emotional problems have clear biological and physical causes. The reason he was so demanding is that his body was hungry, and so his brain went into alarm mode:
I need food NOW .
The problem is not that he is a rude kid, it's that his metabolism was flooding his brain. If I had scolded him this would have had the effect of riling up his brain even more, which was already in freakout mode (I'll leave it to a neurobiologist to explain this with big $10 words like amygdala and cerebral cortex, but the basic science here is quite solid).