There is a whole lot of duty of man, and one important duty is to follow the commandment of God.
God created us for one purpose which is to obey his commandment, to worship him and to live according to his will. We are not as believers if we do not follow the commandment of God. The book of Ecclesiastes 12:13 has also taught us that our duty is to fear God and keep that commandment.
At this moment we have to be willing to listen to that indoctrination. Brother Eli explained the odd part that the commandment of God is what we use to build our spiritual life as believers. If our goal is heaven, then we must be willing to obey the will of God and go to his teaching. We should not be afraid.
It won't be only that here at us, but we should be the doer that keeps progressing in life, not just there in the world, within the world, but we are acting on it on our day to day activities.