Night, Day, Before, After

From the surface of the planet, it is undeniable that day follows night. But from as little as one astronomical unit above the plane of the ecliptic, it becomes clear that day and night are the product of the planet's shape, something experienced only by the inhabitants on the surface of the planet.

If you can grasp that concept, you are ready to proceed to the beginning of understanding what eternity is:

There is no then, no now. There only is. When a Christian prays in the words of the Lord's Prayer "Thy will be done, on Earth as it is in Heaven" they are asking that the completed, perfected state of the eternal kingdom be reflected on Earth. Now, is it possible, for a domain changing with time to truly reflect the changeless, perfect eternal? how might this prayer be answered?

All the time in the world

To see a world in a grain of sand,
And a heaven in a wild flower,
Hold infinity in the palm of your hand,
And eternity in an hour.

I received a message this morning.
The message was sent by me, but not by me.
By me in the past.
Time really is not a simple progression of cause and effect, but an infinitely complicated web, past, future and apparent present all inextricably linked.
Time did not "begin", will not "end". It came into being without beginning or end.