What does any slave seek? Someone who is both Powerful and Compassionate in the balance right for their personal need. That balance varies from individual to individual. And yes, there are many other more personal factors also. But in essence, that is what a slave needs. Someone powerful enough to control them to the core of their soul, and someone compassionate enough to apply that control with discretion.

Someone who is extremely trustworthy & gentle in their absolute firmness makes an excellent Master or Mistress. Someone who is there to guide through control, but who would never abuse via domination. Someone who accepts the slave’s limits (including a safe word, or gesture if gagged), yet brings his slave right to the edge of their capacities.