Vance Havner commenting on 1 Kings 17:2-4, 9-10 suggests:
I do not believe that the ravens would have fed Elijah anywhere else, not would the widow woman have appeared anywhere else except “there.” God did not say, “Elijah, ramble around as you please and I will provide for you.” “There” was a place of God’s will for Elijah- the place of God’s will for Elijah- the place of his purpose, the place of His power and the place of His provision.
“There” was the place of God’s purpose. God has a “there” for you, somewhere He wants you to be, something He wants you to do. You can never be truly happy elsewhere, nor can you please God anywhere but “there.” You may do lovely things and become a “success,” but always there will be the haunting sense of having chosen life’s second best.