Acceptance of Hashem's Will
Emunah & bitachon
Rav Eliezer Papo taught an attitude of acceptance: whatever happens is for the best, because it is Hashem's will. Suffering and adversity are to be received with calm, since they give a person the chance to show true faith in Hashem and to do teshuva.
Source: Teachings of Rav Eliezer Papo