We all need that, whether we're slaves or Tops or boys or vanilla. About these there can be no compromise, because when they are lacking in a slave's life, slavery itself cannot long be sustained. The popular conception is that slaves are people who are forced to obey a Master's orders, and many slaves also fantasize being forced. This no doubt was true of many or most coerced slaves in history. It is not true of consensual slaves today.
Obedience is the voluntary slave's lifeblood.
We only ask to be given the opportunity. And that's where direction comes in. Lots of people are bossy or domineering or pushy. The more perfectly you obey someone like that, the more likely you are to get into trouble, because today's order may contradict yesterday's or undermine tomorrow's. The most common slave fantasy is probably of being punished, but i think the erotic charge of this is really a metaphor for discipline, which is not the same as punishment.