So what does this mean we should do? Does this mean we need to do something great?
Here is how Saint Theophan answers this,
It is a great error to think that you must undertake important and great labors, whether for heaven, or, as the progressives think, in order to make one's contribution to humanity. That is not necessary at all. It is necessary only to do everything in accordance with the Lord's commandments. Just exactly what is to be done? Nothing in particular, just that which presents itself to each one according to the circumstances of his life, and which is demanded by the individual events which each of us meets.
Is someone seeking help? Help them. Has someone offended you? Forgive him. Have you offended somebody? Rush to ask forgiveness and make peace. Did somebody praise you? Don't be proud. Did somebody scold you? Do not be angry. Is it time to pray? Pray. Is it time to work? Work. Etc., etc., etc. If, after all of this has been explained, you set about to act in this way in every instance so that your works will be pleasing to God, having carried them out according to the commandments without any deviation, then all the problems of your life will be solved completely and satisfactorily. The purpose is the blessed life beyond the grave; the means are the works according to the commandments, the execution of which is required by each instance of life.This is worthy of some reflection. We tend to make life more complicated than it needs to be. Remember our purpose and the commandments. With simplicity we are called to do our best to meet them each step we take. No more and no less.
More on an Orthodox Way of Life
Reference: The Spiritual Life, pp 87-89