Thanks nativeastral for the link to the halexandria site. It will take a while to sift through. Meister Eckhart's words on the eternal now are quite in tune with the video above. I might start a thread on that topic later.
For the moment (whether eternal or fleeting), there is a Jainist text ( Akaranga Sutra) with a passage that offers an alternative to zen views. It has more in common with the Cartesian, "I think therefore I am".
"The self is the knower (or experiencer), and the knower is the Self. That through which one knows is the Self. With regard to this (to know) it (the Self) is established."
The zen response, perhaps, would be to say, To cease to know is to cease to be obstructed by concepts of a self.