I could be a submissive but I prefer to be a slave.
A slave has a Master who controls it's life.
The slave is not a player. It takes its Master seriously and does as it is told. Master does not praise it often for being good but surely makes sure to tell it when it makes a mistake. No one is perfect but the slave better try really hard to be as perfect as possible.
It is not about self satisfaction but more about pleasing the Master.
A slaves needs are not important. The only important thing in a slaves life is that its Master is cared for and happy.
Why be a slave you might ask? Because he wants me to be!