The principle of very rigidly carrying out the order of the spiritual master must be observed. The spiritual master gives different orders to different people. For example, Sri Caitanya Mahaprabhu ordered Jiva Gosvami, Rupa Gosvami and Sanatana Gosvami to preach, and He ordered Raghunatha dasa Gosvami to strictly follow the rules and regulations of the renounced order. All six Gosvamis strictly followed the instructions of Sri Caitanya Mahaprabhu. This is the principle for progress in devotional service. After receiving an order from the spiritual master, one must strictly try to execute the order. That is the way of success.