Strider's blade deignited. He expected no further strikes from Emukiel, and even if he had, the one thing Emukiel didn't know was his mastery of close quarters combat as well as quite innovative uses of the Force.
"I assume you mean why myself personally. I have many reasons. As for its worth, so long as I'm still breathing, the cause is still worth something to me," Strider replied vaguely. He knew this was not the answer Emukiel would want, but Strider was trying to buy time for him to create his escape from this confrontation.