If I am recalling an incident very vividly I go back to the instant of its occurrence; I become absent minded, as you say. I jump back for a moment. Of course we have no means of staying back for any length of time any more than a savage or an animal has of staying six feet above the ground. But a civilized man is better off than the savage in this respect. He can go up against gravitation in a balloon, and why should we not hope that ultimately he may be able to stop or accelerate his drift along the Time Dimension; or even to turn about and travel the other way?
We all learn by experience, and your lesson this time is that you should never lose sight of the alternative. Sherlock Holmes speaking with Dr. Watson.
A word of the faith that never balks,
Here or henceforward it is all the same to me, I accept Time absolutely.
It alone is without flaw, it alone rounds and completes all,
That mystic baffling wonder alone completes all.
We are seeing, then, that our experience is altogether momentary. From one point of view, each moment is so elusive and so brief that we cannot even think about it before it has gone. From another point of view, this moment is always here, since we know no other moment than the present moment. It is always dying, always becoming past more rapidly than imagination can conceive. Yet at the same time it is always being born, always new, emerging just as rapidly from that complete unknown we call the future. Thinking about it almost makes you breathless.