I therefore so run, not as uncertainly; so fight I, not as one that beateth the air: But I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway. (I Corinthians 9:26-27 KJV)
Do you have goal in your life that you'd want to grab on? We all do have certain goals that we would like to have in our lifetimes, but it's a challenge. Apostle Paul reminds us that reaching for the goal is not easiest thing to do. We do all have to work toward to our goal. Even Jesus reached for His goal, saving His people from their sins by dying on the Cross and rose again on the third day.
Everyday, we have a race--a race that the world would like to challenge our spiritual authority on. It could be to do with our jobs, lifestyles, finances, marriage, car, or with our loved ones. Whatever is, Satan would like to challenge us on certain object or person. Although we may have difficult to find that obstacle first, with God's help, we can face the challenge that our enemy sets before us.
Do you have goal to wish to grab on? Why not just trusting Jesus Christ to conquer your obstacle and grab on that victor that He prepares for you to have it.