Therefore let us, as many as are mature, have this in mind; and if in anything you think otherwise, God will reveal even this to you."
Philippians 3:14-15 (NKJV)
Over my years in ministry, and even personally, I have traveled to many different places in different countries. No matter where I go, there is always a destination I am headed towards. It would not make much sense to take trip with no idea about where to go, and it would make even less sense to start a trip with absolutely no plan of how to reach the destination. If there is a journey to make, then there must be a goal in mind and to reach the goal you have to have a plan about how to get there, which normally would include taking the best route possible.
God wants us to know His will and to fulfill His plan for our lives. Some people get very concerned about whether or not God really wants to show us what to do, especially if we make some mistakes or go off course at some point. But, we are His children and He wants the best for us, and this includes knowing and understanding His will. In Colossians 1:9 Paul told of how he was praying for those believers to be filled with the knowledge of God's will with all wisdom and spiritual understanding. God does not just want us to know what to do, but He also wants us to know when to do it, and the best way to do it.
In Philippians 3 Paul talked about leaving the past behind and pressing toward the goal that God had for him. He went on to say that this is how mature believers should think. But, Paul also said that if we are not having the right goal in mind then God will reveal that to us. We don't have to live in fear of missing God's plan because, as Paul said, God will reveal to us what we need to know. As long as we are not in complete rebellion to God and refusing to listen to Him, God will guide us and direct us by the Holy Spirit into His plan and purpose for our lives. God's wants us to know and fulfill His will and He will help us and guide us to be able to do that.