There was a Persian prophet and Sufi master by the name of Rumi who, had made some amazingly insightful statements in his life. One of these such profound statements is “there's one thing in this world which you must never forget to do”.
Rumi said that "human beings come into this world to do particular work. That work is their purpose and each is specific to the person. If you forget everything else and not this, there's nothing to worry about. If you remember everything else and forget your true work, then you will have done nothing in your life".