To be a serious writer requires discipline that is iron fisted. It’s sitting down and doing it whether you think you have it in you or not. Everyday. Alone. Without interruption. Contrary to what most people think, there is no glamour to writing. In fact, it’s heartbreak most of the time.
-- Harper Lee
This is true about being a serious pastor too, except in the pastoral work, it's not alone and with plenty of interruption.