This Shabbat is פרשת זכור, where we remember Amalek. It is considered a Torah obligation to hear the reading of זכור this Shabbat.
If one is unable to hear the reading on Shabbat, there is the possibility of making it up by hearing the Torah reading on Purim day that also deals with Amalek.
The reason we fulfill the Mitzva of remembering Amalek at this time, is because Haman was a descendent of Amalek.
We are to be aware that Hashem’s throne is not complete as long as Amalek is in the world. They epitomize all that is evil. They include יצר הרע and עין הרע and even Satan. When Amalek is destroyed, evil is destroyed and the good is able to shine through.
This explains why the destruction of Amalek is a prerequisite to building the Temple. Amalek is darkness and the Temple is light. Darkness must be eliminated so that the light can shine. Shabbat Shalom