Psalm 100: 3,5 "Know that the LORD is God.  It is He who made us, and we are His; we are His people, the sheep of His pasture... For the LORD is good and His love endures forever; His faithfulness continues though all generations."
     To say that we belong to God speaks novels and one could spend a lifetime studying and finding out what that actualy means.  In a generation where there is a cry of "where do I belong?" this brings an answer to that longing heart:  you belong in the heart of God; no other place is more home for us than in the heart of our heavenly Father, our Abba.  Inside of our hearts is that deep longing to belong and if only we would just search in the right place- the heart of God- we wouldn't need to run aground in our search ever again.
     Next off, a lesson that would ease the anxiety of our hearts, is that we are His.  Despite all of our failures, mistakes and insecurities, He still says that we are His.  He doesn't love us for the things that we can do0though they make Him beam with pride over His songs and daughters- or who we can become; He loves us solely because of who we are.  We can't earn His love, nor can we work towards it; God loves me simply for who I am and He's proud.  God is proud of who you are, He smiles whenever He sees you or whenever He thinks about you (which is all the time!).  The more you find yourself near to the heart of God, the more you raelize that that is home.
     There is no need to fret, for God is good.  Al His thoughts of you- and they are as many as the grains of saind in this world- are only good.  Just because circumstances may not be good, and may be pushing you to the ground, God is working His perfectly good will through those aweful circumstances.  (Romans 8:28 "And we know that in all things, God works for the good of those who love Him, who have been called according to His purpose.  If you didn't know, we are all called, just not everyone answers.)  The goodness of God does not hinge on how good our circumstances may be.
     Give thanks to the Lord, for He is good; His love endures forever!