A few years ago there was a popular book out called "Purpose Driven Life". I didn't much care for the book but, my opinion aside, the book did raise some questions which that I have thought some about some. Are we driven by a purpose or led by the Spirit? Are the two the same? I suppose the two can be the same, but most often, flesh being what it is, they are not.
Here is what I have found to be a problem with the purpose driven idea: where people buy into the idea, they spend much time seeking their purpose. Sometimes they even abandoning what they are already doing because they find a perceived purpose they like better. Or, they find a purpose (they may refer to it as their "calling"), and that is it. End of search. They build a box and define themselves by their perceived purpose. Their perceived purpose then becomes their lord and master, determiner of destiny. Their happiness begins to become dependent upon whether or not they fulfilled their perceived purpose. Their usefulness to God exists only within their purpose boundaries. And, leaders are often found more guilty of this than anyone. A leader, having accepted the calling (perceived purpose) to be, for example, a "Pastor", before long cannot see himself as doing anything else but pastor. Before long, he is no longer a faithful servant who will do anything for the Master. He is now in his pastor-box and limited to only that. Instead of his world getting bigger, it gets smaller. Instead of being an effective Spirit-led servant, who will do anything for God, he can only be led to do things that seem to him to fit in his perceived purpose. I have know those who can preach up a storm but do nothing else worth mentioning. Lousy Christians, lousy husbands, lousy worshipper, but a great preacher. That, my friend is failure. What if, in that context, God says to that pastor "Stop what you are doing. I want you to go to the mission field". Purpose driven, that pastor will probably say "get thee behind me Satan". He is in his purpose driven box. Perhaps the worst thing about all this is that your joy begins to come from your works, and not from your God. That is a slicky slope.
I have found that if you start a new believer off looking for that advertised "God has a plan for your life" notion and you may have ruined him. He spends the rest of his days looking. He may come up with a preconceived notion of what it is and be off the mark by a country mile being too young to properly discern the voice of the Lord. Sheep follow the Master. Lambs follow the sheep. Mess with that principle and you have a mess to live with. Or, that new believer may actually have a good idea, maybe a word from the Lord about a future development and prematurely he grabs hold of it, allows it to become the driver of his life and often causes more harm than good for most of his life. Or, on the other hand if he cannot seem to find a purpose, as described by his religious surroundings, he sinks into inner despair, feeling of no real value, and all because he has no perceived purpose. That is not the way of the Lord. That is why, as the Bible encourages, we don't put "novices" into leadership. Personally I have had to attempt to rescue more than one young person who received a so-called word from the Lord on about the first week of their salvation, calling them to preach. All of their efforts went immediately toward that goal and it was the end of their growth and the beginning of their despair. That perceived "call", perceived purpose, had become a burdening law that kept them from ever learning to walk in the Spirit and be a good Christian. For new Christians I would encourage them on working on being a great Christian, a great worshipper, a good faithful person, a Bible student and an obedient servant and purpose will unfold in God's time. Just be God's. He had you , birthed you, for that purpose.
Really, Christianity is not life lived by a driving purpose. It is life lived, led by the Holy Ghost. There is a huge difference between being led and being driven. I have known people so driven by their perceived purpose, their "calling", that they become unfit to fellowship with by God or man. Their calling became their ambition. For example, some are so driven to win souls, their perceived purpose, they have no time for worship. Worship is a frivolous waste of time to them. Others, and I ran into one of these recently, are so driven to obtain prosperity (their perceived purpose), they have no time or tolerance for just enjoying a time in the presence of God. I have known preachers to burn themselves out fulfilling their perceived purpose. Their ministry became their god and they sacrificed everything for that god. Others, like Martha of the Bible, are so driven to serve, they have no time for the better part, to sit and enjoy the presence of God. True Christianity is supposed to be a life lived walking in fellowship, companionship, and joint endeavors with the Holy Ghost. Not driven - but led.
There is a purpose we all share. That purpose is to please God. The Bible says that God is worthy to receive glory, honor and power because for His pleasure all things were created (Rev. 4:11). The value of what we do does not come from the act itself. The value comes from pleasing God. Our value doesn't come from the perceived purpose we have come up with, but from having pleased God. I don't preach because I am purpose-driven to preach. I am purposed to please God. If it pleases God for me preach, I will preach. It is not the preaching that drives me, but the pleasure of my Father. It is not the work that I have done that gives me pleasure but the voice of God saying "Well done, good and faithful servant". Our goal should be to simply be like Jesus and be able to say as He did, "I always do those things that please the father", Jo. 8:29. If we walk in the Spirit, He is going to lead us, as He did Jesus, to please the Father. We just have to remember, it is not the thing we are doing that matters most, it the pleasure of the Father that matters most.
When the Father's pleasure becomes your standard, your benchmark, you start to live on a different level. Now, for example, on this level, you don't just worship. You worship in spirit and in truth, for that is what God is seeking and that is how He wants us to worship. You don't just praise because you like to do that but because with such sacrifices "God is well pleased", Heb. 13:15-16. You even turn from sin, not so much because of threat of hell, but because you want to please God. You make life-style choices, not on the basis of fear or popular trends, but because you sense the pleasure, or lack of pleasure, coming from God. For example, you may turn away from some form of music, or certain movies, not because they are going to destroy and send you to hell, but because down inside you sense that for you, it does not please the Father. Others might do those things, but the pleasure of the Father says to you "No..not for you".