Do not store up for yourselves treasures on earth, where moth and rust destroy, and where thieves break in and steal. But store up for yourselves treasures in heaven, where moth and rust do not destroy, and where thieves do not break in and steal. For where your treasure is, there your heart will be also. (Matthew 6:19-21)
I've used this verse to question myself a number of times, "Who/what is currently on the throne of my life?" Is it money? Is it the desire to be successful in school / athletics / career? Is it another family member or friend? Is it God? When the answer to this question is anyone or anything but God, my life, not surprisingly, has always been in disarray. It is only when I decide to fully yield my life to God that I find true happiness and fulfillment.
Unfortunately, this is an ongoing struggle. My natural tendency is to want to be the captain of my own ship - too bad I'm not as great a navigator as the Lord. When I reach the end of myself, He is always faithful to right the ship and steer me back on course.