Ramblings on the "Word" Problem of Eastern Mysticism

Is there a presupposition about the "present reality", i.e., that only the present "moment" is real?
Why does only the present possess reality? Does not the past & future posses as much reality as the present?
Cannot all time(s) be reality? Can it not be that it is all the Times all the time?

Vonnegut on the reality of Times and the all-too-human perception thereof, Slaughterhouse Five: "The most important thing I learned on Tralfamadore was that when a person dies he only appears to die. He is still very much alive in the past, so it is very silly for people to cry at his funeral. All moments, past, present, and future, always have existed, always will exist." (2.7.2)

The "stream" flows regardless of our presence--our Dasein.
Or, does our perception/observation play an active, "real" role in reality, such that our Being really affects Time?
Time Being contingent upon past, present, & future, equally. [...]
Heraclitus: One never steps into the same stream twice. [...] All things flow.