As long as Yisrael does not dwell on its Land, the Land does not give her fruits as she is accustomed. When she will begin to flower again, however, and give of her fruits, this is a clear sign that the end — the time of the Redemption — is approaching when all of Yisrael will return to its Land.
Nothing is as challenging to our faith as seeming injustice and tragedy. How does a believing person reconcile an apparently cruel world with an Omnipotent and Merciful Creator?