Guarding against the voice of the Yetzer Hara.

One of the most effective voices of the Yetzer Hara is to tell us that we can't have the one thing that we really want.  The snake convinced Chava to eat the fruit of the Etz Hadas.  Haman couldn't be happy because Mordechai wouldn't bow down to him.

from a Shiur by Rabbi Ari Kahn   -- "The Story of Esther Hidden and Revealed"

We always have to be on guard against the feeling of lack, because it can bring us to sin.

You can listen to this inspiring Shiur for free by going to:
http://www.rabbiarikahn.com/