It is possible to actually understand what the Dahaka says. When doing a Dahaka Run, and the Dahaka talks, you won't be able to understand it. Let's change that.

About half a second to a second after he finishes talking, use Recall to rewind time. If your timing was good, you can understand what he actually says.

Some phrases are:

"You are quick, mortal... quick to die"

"You will be removed"

"Disrupt the Timeline no further"

"All who have come before you have fallen"

"No-one escapes the Dahaka"

"You cannot escape the Dahaka"

"You cannot escape your fate"

"Come to me... come to your death!"

...and some other phrases can be heard with this method.