I agree with what vicmal said. I feel at my strongest when I am submitting actively to him, suppressing my will in order to give in to his. It's not easy all the time.

How can a person willingly kneel before another, accepting Their will over his/her life (not only their sexuality).
Knowing that you allow another to be involved in your inner dialogue, your mind, your heart, your plans, your strenghths and weaknesses.
And not buckle under all that?

By being strong.

How do you(as a sub) expose your deepest desires and needs to someone. Or
Choose a flogger, stand as directed and count... And be a weakling???