The perpetually changing Universe

When we look back upon our lives, we almost always feel that in some circumstance or other we could have done better, even though at each minute the action was dictated by the inner truth; this is because the universe is in perpetual motion, and what was perfectly true at one time is only partly so today. Or, to express it more precisely, the action necessary at the time it was carried out is no longer so at the present time, and another action might more fruitfully take its place.

Ref: The Mother’s Agenda