The right understanding of Bhagavad-gita is Arjuna’s understanding. In other words, Arjuna came to the conclusion that he must perform his occupational duty, not as a material obligation, for reasons of wife, family, friends, reputation, professional integrity, like that — no. Rather he must conduct the functions of his station of life only as a devotional service performed for Krsna. That means that devotional service is what is important, not my occupational duty. But it does not mean that because occupation duty is not the real consideration, that I should give it up and do something else, thinking that devotional service may be carried on under whatever circumstances which I may whimsically decide. Krsna recommended Arjuna to remain as he was, not to disrupt the order of society and go against his own nature just for convenience sake. Our occupational duty is not arbitrary, that means once we have taken up some field of action, if we are advanced in our understanding, then we shall not change it for another. Rather our devotion is the important factor, so what does it matter what I am doing so long my work and energy are completely devoted to Krsna?
From Srila Prabhupada’s letter to Madhukara, 4 January, 1973