When I was attending Grace University, I had this really cool professor who said one night something along the lines of, "if you're bored, it has less to do with a lack of things to do and more to do with flawed character". It hit me in the heart and has always stuck with me.
And I think most of us, if we are studying the things of God, have heard and know the truth that anxiety and worry result from a lack of trust in God. Also something that can make you really examine your heart.
Mark 10:22 says "the man's face clouded over. this was the last thing he expected to hear, and he walked off with a heavy heart. he was holding on tight to a lot of things, and not about to let go." because Jesus had just got done telling him that he needed to sell everything he owned and give it to the poor. Verse 22, his response, is a result of a lifetime of "security" in wealth and rule.
Anthony de Mello, as quoted by Rob Bell in "Sex God" (and pointed out to me by a brother) says about Mark 10:22:
"And here is something else to ponder on: Each time you are anxious and afraid, it is because you may lose or fail to get the object of your attachment, isn't it? And each time you feel jealous, isn't it because someone may make off with what you are attached to? And almost all your anger comes from someone standing in the way of your attachment, doesn't it? And see how paranoid you become when your attachment is threatened - you cannot think objectively; your whole vision becomes distorted, doesn't it? And every time you feel bored, isn't it because you are not getting a sufficient supply of what you believe will make you happy, of what you are attached to? And when you are depressed and miserable, the cause is there for all to see: Life is not giving you what you have convinced yourself you cannot be happy without. Almost every negative emotion you experience is the direct outcome of an attachment.
