"This is the account of Terah. Terah became the father of Abram, Nahor and Haran. And Haran became the father of Lot. While his father was still alive, Haran died in Ur of the Chaldeans, in the land of his birth. Abram and Nahor both married. The name of Abram's wife was Sarai, and the name of Nahor's wife was Milcah; she was the daughter of Haran, the father of both Milcah and Iscah. Now Sarai was barren; she had no children." NIV translation
Ur of the Chaldeans would be in what we call southern Iraq today. While they were still there, Haran died and left a son. Haran, whose name means "mountain climber", reminds us that man always wants to work for their salvation but, in the end, that leads to death.
"Terah took his son Abram, his grandson Lot son of Haran, and his daughter-in-law Sarai, the wife of his son Abram, and together they set out from Ur of the Chaldeans to go to Canaan. But when they came to Haran, they settled there. Terah lived 205 years, and he died in Haran." NIV translation
We remember that the name Terah means spirited or inspired and we see that God had inspired him to leave the land of idolatry (Ur of the Chaldeans) and to go to Canaan. We see that when it got tough, he stopped and settled in Haran. We also notice that Nahor was comfortable in Ur and so he did not go with them.
This speaks to those who are comfortable with the things of this world and do not think that they need the direction of God. We also see that Terah wasn't willing to continue when the road became difficult but instead died close to where he had left.