Where do you normally go to eat your meals and get something to drink? For most of us its probably the kitchen in our homes. We work, buy food, prepare it, eat it and, if nothing else, we go to the sink and get a glass of water. That's seems to be the norm in most American households. But, Elijah was confronted with a different "norm." However long he was in the wilderness he would understand that the little stream nearby his blanket was where he would drink, and the ravens, of all things, would drop food to him for his meals! (And think about this: the ravens, like our American crows, were usually "carrion eaters." That means they usually picked up the "road kill" of the day and consumed it! Not such a nice thought as to where your next meal might come from!)
But, there's something that Elijah also understood that really was a "norm" for him: He had come to expect that God would always see to it that he was cared for.
Note the next "eatery" he would go to in chapter 17 of 1 Kings. God would lead him to the home of a poor widow and her son and all she had was "a handful of flour in a bin, and a little oil in a jar." But with that the Lord would meet their needs for another unspecified period of time.
All too often we trust our paycheck to meet our needs. I honestly don't think Elijah got much "pay" for his ministry. He had learned to be content with trusting God. His prayer would naturally have been, "...give us this day our daily bread."