When we ask God for what is our purpose in life, we ignore it all the time when in fact, he answers immediately to that question. It is just that people do not want that kind of answer, people tend to imagine things that they really wanted to have. If you allow God to be part of your life, let him be the judge of your life, let him be the main planner and you supports. Our purpose is a combination of what we do and what he planned.
That is one thing that I have always in mind. Why did God make human beings or what is his purpose in doing those things. God allowed us to be part of his world and we are allowed to to make him as part of our world. Sometimes, even if we are continuously searching for the reason on why we do what we have to do, we hinder the fact that we have a goal of making them in the first place.
I even question myself sometimes on what is my purpose in this life. I believe in reincarnation. There is no specific reason on why I believe in it, but I just do. I also believe that God wanted to see something about humans which I still do not know yet. It makes me so curious on knowing the reason of our existence, what is the purpose of Gods and what anomalies can happen to the dichotomy of religion and state.