One of the significant insights about the world is that nothing was created for naught.
Why is this such a powerful insight?
It teaches that there is no inanimate, vegetative, living creature with no value concerning the purpose of creation and its general intention.
And if so, concerning everything created, you indeed do not have a person who has no value, importance, and ability to influence.
Because of this, every person deserves respect and appreciation just for being created, and all the more so if he fulfills his purpose and discovers his powers.
This insight is no less potent in the private world of each of us.
On the one hand, it says that there is nothing we went through, no encounter we experienced, no place where we were, that was unnecessary. Everything can teach us something about ourselves, our choices, and our purpose.
On the other hand, and almost the opposite, this insight teaches that it is a tremendous but essential task to strive to avoid unnecessary matters. Things that suck up strength and time and have no real value.
(* Shabbat, 77, b)