We keep stuffing all sorts of things into our lives to find satisfaction and contentment: career, money, cars, toys, relationships, both good things and bad things. The only issue is that the hole that we keep stuffing these things into is never going to be satisfied. The hole has a specific shape and will only be satisfied fully and completely by one thing. The hole is a God-shaped hole and when we stuff other things in that hole we will never be satisfied. Grab onto God and you will be content in everything.
I rejoiced in the Lord greatly that now at length you have revived your concern for me. You were indeed concerned for me, but you had no opportunity. Not that I am speaking of being in need, for I have learned in whatever situation I am to be content. I know how to be brought low, and I know how to abound. In any and every circumstance, I have learned the secret of facing plenty and hunger, abundance and need. I can do all things through him who strengthens me. (Philippians 4:10-13 ESV)