Why did I fail in my Nisayon?

Sometimes people have Nisyonos that they are not able to withstand, and they fail.  This seems to contradict the idea that we are never put in a Nisayon that we do not have the ability to withstand.  The answer to this contradiction is that sometimes we put ourselves into a situation, that we were not meant to be in.  In that case Hashem has not given us the ability to withstand the Nisayon.

Another reason is that we can choose to fail.  Even though we have the ability to pass, we can choose to fail.

from a Shiur by Rabbi Noson Weisz about Beshalach from Aish Audio

Bringing our potential into reality

Hashem gives us tests, Nisyonos, to help us to bring our potential into reality.  If a person is never challenged they can live all of their lives in their comfort zone and never grow.  Hashem brought B'nei Yisrael through the dessert, giving them exactly the food that they needed for that day, to help them to grow in their Emunah.

from a Shiur by Rabbi Noson Weisz about Beshalach from Aish Audio.

Don't Take Plesure from the Seudah of Secular Life

Purim, Assimilation, and Holocaust
by Rabbi Noson Weisz
from Aish.com

Achasveiros tried to unite the world around the idea that if we all work hard and work together we will all be successful, and we will get more and more things. He failed to maintain a rule based on this idea but today's world is based on this same idea. Jews believe the opposite. We believe that the goal of life is not to attain more, it is to do Mitzvot and come closer to Hashem. This is our purpose and the reason that we are in this world. As long as Jews follow the way of Hashem and serve as a positive role model to the world we do not face destruction. When we do not "do our job" and serve as a role model, Hashem brings destruction to the Jewish People. We have to remember not to "Enjoy the Seudah (life)" but to enjoy our relationship with Hashem.

We have to remember that as soon as we did Tesuvah everything turned around in a minute. This is an important lesson of Purim- the importance of Teshuva