Yoglith regulates the flow of time so that it is a slow, steady march. And Xa'an doesn't care much for something so orderly.
Those who fear the future, regret the past, or enjoy the present pray to the gods of Time. With the demise of Yoglith, his only child, Vymrl, has taken up the mantle of time. Under his control, it seems likely that Time's power will be used to lock The Bound Plane, Tamurung, outside of time itself.