Jesus is the Head

We, His followers, are the body. 

You have a head.
Your body does what your head tells it to do.
Your voluntary body movements occur because your head, specifically your brain, tells your body to move.
Body parts that move involuntarily also move because your brain, the head, tells it to move.

There are times when the body moves on it's own, outside of voluntary and involuntary movements, and that denotes a problem. Parkinson's disease is an example of such a problem. This disease is a disorder of the brain that leads to shaking and difficulty with walking, movement and coordination.

When Jesus, the head, is motivating us and our moves, things are working properly. We are in His will and our lives will be successful and bring glory to Him.

When we operate on our own and in our own will, apart from the headship of Jesus, there is a problem. This denotes a breakdown in authority and disorder will surely result.

Allow Jesus to be what He is - the head of the body, the head of the church. Then we, the members of the body, will function gloriously together! I'm getting hype just thinking of what that looks like!

Be strong and courageous, for you shall give this people possession of the land which I swore to their fathers to give them. Only be strong and very courageous; be careful to do according to all the law which Moses My servant commanded you; do not turn from it to the right or to the left, so that you may have success wherever you go. This book of the law shall not depart from your mouth, but you shall meditate on it day and night, so that you may be careful to do according to all that is written in it; for then you will make your way prosperous, and then you will have success. Have I not commanded you? Be strong and courageous! Do not tremble or be dismayed, for the LORD your God is with you wherever you go. Joshua 1:6-9

He is the image of the invisible God, the firstborn over all creation. For by Him all things were created that are in heaven and that are on earth, visible and invisible, whether thrones or dominions or principalities or powers. All things were created through Him and for Him. And He is before all things, and in Him all things  consist. And He is the head of the body, the church, who is the beginning, the firstborn from the dead, that in all things He may have the preeminence. Col 1:15-18

Also check out Romans 12 and 1 Corinthians 12 to see how we are all many members of one body where Christ is the head.