Meditation-- on What?

"But his (the blessed man) delight is in the law of the Lord, And in His law he meditates day and night."  I was convicted by this as I read it the other day.  You see, my life at this point is spent at a consistently frenetic pace.  In the midst of this blur of activity I do meditate or dwell on my plans, dreams, concerns, etc.  It is alarming, however, how little of that meditation is spent centered on God, His word, His plan for my life, and His provision.  Unfortunately, more often than not I spend that time imagining how I can accomplish this or that, or what I need to do to get a certain thing done.  This is not at all a bad practice generally speaking.  However, void of the meditation that the psalmist speaks of I know it will be impossible to be "firmly planted" as the passage goes on to say.  I have noted how often I feel like life is spiraling at times and I believe that occurs when my "root system" has become to shallow to withstand the winds and storms.  Also, I wonder how much my "delight" is on that law of God and His direction for me versus the obligation I feel I must meet.  I want to develop a meditation on the Lord that will guide, influence, and direct my meditations on subjects of school, work, family, church, etc.  As I do this, I would hope that it would be my delight for His direction that brings me back more than an obligation.  Still striving.....