There isn't much contentment in this world. People are forever trying to change their looks, find the more exciting job or get enough money to buy the latest and greatest new product or fashion. They are never satisfied...always grasping.
As Christian we are to be content in all things (phillipians 4:11) ...except one. God never wants us to be content with just maintaining our current level of spirituality. He wants us to grow. He wants us to strive for and chase after a closer walk with Him.
Never be satified...seek to grow.
"You will ask me, are you satisfied? Have you got all you want?
God forbid. With the deepest feeling of my soul I can say that I am satisfied with Jesus now; but there is also the consciousness of how much fuller the revelation can be of the exceeding abundance of His grace. Let us never hesitate to say, this is only the beginning."
Andrew Murray - scottish missonary to South Africa